Sabrina Sartori

• Ikkala, Olli; Weidenkaff, Anke; Babcsán, Norbert; Barry, Andrew; Beck, Gesa & Cahen, David [Show all 21 contributors for this article] (2026). Advanced Materials: Evidence Review Report – Scientific Advice Mechanism. zenodo. doi: 10.5281/zenodo.18222345. Full text in Research Archive
• Vicente, Igor S.; Strozi, Renato Belli; Silva, Bruno Hessel; Sartori, Sabrina & Floriano, Ricardo (2026). Toward Low-Cost Metal Hydrides: Ferrovanadium as a Viable Feedstock for TiZrVFeNi-Based Stationary Hydrogen Storage. ACS Applied Energy Materials. doi: 10.1021/acsaem.6c02001. Full text in Research Archive Show summary

  Abstract Metal hydride-based hydrogen storage systems are promising for stationary applications; however, the high capital expenditure (CAPEX), largely driven by refined alloying elements, remains a barrier to large-scale deployment. This work investigates substituting high-purity V and Fe with industrial ferrovanadium (FeV80) in dual-phase C14/BCC Ti21Zr21VxFeyNiz alloys. Two representative compositions were produced using high-purity (HP) and low-cost (LC) precursors: a low-vanadium alloy (5 V) and a high-vanadium alloy (14 V). Microstructural and crystallographic characterization confirmed that the LC alloys fully preserved the target dendritic dual-phase configuration and phase balance, proving that industrial impurities below 0.7 wt % do not alter the core metallurgy. At room temperature, the LC alloys exhibited reversible capacities (1.1 wt % for 5 V and 0.7 wt % for 14 V) and cycling stability virtually identical to their HP counterparts, while FeV80 successfully halved the activation incubation time of the 14 V alloy from 1000 to 500 s. Economically, the FeV80 substitution achieved a substantial raw material cost reduction of up to 61.1%, slashing the 14 V alloy price from 66.79 to 25.99 USD/kg. Projecting these experimental values onto a commercial stationary storage case study with a 7.6 kg H2 target demonstrates that under an optimized maximum capacity scenario, the 14 V-LC alloy requires only 481 kg of active material, which represents a 12.5% mass reduction compared to the 550 kg commercial benchmark active bed and a 60.6% reduction in active material cost compared to the HP counterpart. Ultimately, this study establishes industrial-grade ferrovanadium as a strategic, scalable feedstock capable of drastically reducing storage system CAPEX while completely decoupling production costs from functional performance.

• Broom, Darren P.; Allendorf, Mark D.; Autrey, Tom; Baricco, Marcello; Colbe, Jose Bellosta von & Bowden, Mark E. [Show all 33 contributors for this article] (2026). Hydrogen-based materials for energy storage and conversion. Nature Reviews Clean Technology. 2, p. 512–533. doi: 10.1038/s44359-026-00184-z. Full text in Research Archive
• Haraldseth, Hans Kristian; Haaskjold, Kristina; Sartori, Sabrina & Haugen, Krister Leonart (2026). Incentivizing increased storage capabilities to mitigate uncertainties in renewable energy production. Journal of Energy Storage. ISSN 2352-152X. 160. doi: 10.1016/j.est.2026.121738. Full text in Research Archive
• Silva, Bruno Hessel; Jensen, Emil Høj; Girella, Alessandro; Fontana, Gabriel L.B.G.; Floriano, Ricardo & Milanese, Chiara [Show all 7 contributors for this article] (2026). Insights on the hydrogen absorption/desorption reactions of a Zr-rich multi-phase alloy. International Journal of Hydrogen Energy. ISSN 0360-3199. 210. doi: 10.1016/j.ijhydene.2026.153642. Full text in Research Archive Show summary

  We investigate the hydrogen sorption reactions evolving in a Zr-rich multi-phase alloy of the Zr-V-Mn-Ni system composed of a Laves C14 phase and Zr-rich secondary phases. We combine computational alloy design, volumetric measurements, structural characterization, thermal measurements, and theoretical calculations to explain the sorption reactions. The alloy is easily hydrogenated at room temperature forming hydrides with different extents of hydrogen per metal ratio. Using Peisl's relation, we estimate the hydrogen amount stored in each phase after sorption processes. The Laves C14 phase absorbs around 1.1 wt% of hydrogen, whereas the secondary phases absorb approximately 0.5 wt% of hydrogen each. All hydrides are stable at room temperature, but the hydride formed by the Laves C14 phase is completely decomposed at 350 °C under dynamic vacuum. In a preliminary cycling attempt, we observe a significant difference in the kinetic absorption behavior, likely associated with changes in the amount of active interphase boundaries.

• Pavlyuk, Volodymyr; Kordan, Vasyl; Zelinska, Oksana; Pavlyuk, Nazar; Dmytriv, Grygoriy & Silva, Bruno Hessel [Show all 10 contributors for this article] (2026). Hydrogenation properties of composite materials based on yttrium substituted Mg17Al12. Journal of Alloys and Compounds. ISSN 0925-8388. 1057. doi: 10.1016/j.jallcom.2026.186660. Full text in Research Archive
• Mroczkowski, Tony; Gallardo, Patricio A.; Timpe, Martin; Kiselev, Aleksej; Groh, Manuel & Kaercher, Hans [Show all 26 contributors for this article] (2025). The conceptual design of the 50-meter Atacama Large Aperture Submillimeter Telescope (AtLAST). Astronomy and Astrophysics (A & A). ISSN 0004-6361. 694. doi: 10.1051/0004-6361/202449786. Full text in Research Archive Show summary

  The (sub)millimeter sky contains a vast wealth of information that is both complementary and inaccessible to other wavelengths. Over half the light we receive is observable at millimeter and submillimeter wavelengths, yet we have mapped only a small portion of the sky at sufficient spatial resolution and sensitivity to detect and resolve distant galaxies or star-forming cores within their large- scale environments. For decades, the astronomical community has highlighted the need for a large, high-throughput (sub)millimeter (λ ~ 0.35–10 mm) single dish. The Atacama Large Aperture Submillimeter Telescope (AtLAST), with its 50-m aperture and 2° maximal field of view, aims to be such a facility. We present here the preliminary design concept for AtLAST, developed through an EU Horizon 2020-funded design study. Our design approach begins with a long lineage of (sub)millimeter telescopes, relies on calculations and simulations to realize the optics, and uses finite element analysis to optimize the conceptual designs for the mechanical structure and subsystems. The demanding technical requirements for AtLAST, set by transformative science goals, have motivated the design effort to combine novel concepts with lessons learned from previous efforts. The result is an innovative rocking chair design with six instrument bays, two of which are mounted on Nasmyth platforms, inside a large receiver cabin. Ultimately, AtLAST aims to achieve a surface accuracy of a ≤20 µm root mean square half wavefront error, corresponding to the goal of a Ruze efficiency of >50% at 950 GHz. We conclude that a closed-loop metrology of the active primary surface will be required to achieve our surface accuracy goal. In the next phase of the project, we shall prototype and test such a metrology on existing platforms, with the goal of delivering a mature, construction-ready design by the end of this decade.

• Zayim, E; Mohseni, A.; Galeckas, Augustinas; Sartori, Sabrina; Ernazarov, U & Karazhanov, Smagul (2025). Fabrication of tungsten oxide-based hybrid photochromic blends by scalable method. Materials Chemistry and Physics. ISSN 0254-0584. 337. doi: 10.1016/j.matchemphys.2025.130572. Full text in Research Archive Show summary

  In this paper we have synthesized tungsten oxide-based organic/inorganic hybrid materials composed of tungsten hexachloride (WCl6) and polyvinylpyrrolidone (PVP) micro- and nanosized fibers. The films are deposited on substrates such as paper, glass, metal, and fabric using techniques including electrospinning, spin coating, fiber drawing, casting, and inkjet printing methods. The films exhibit photochromic properties at room temperature. Distinct from pure WO3-based coatings, photochromism of the hybrid films is reversible at ambient conditions without heating or applying an electric field. Photochromic performance of the hybrid films has been studied. From optical properties studies we demonstrate about UV illumination-induced band gap engineering. Mechanism of the photochromic effect in the hybrid films is suggested to be related to defects. We suggest also that illumination with the UV light undergoes by structural point defect formation.

• Vicente, Igor S; Andrade, Gaspar; Silva, Bruno Hessel; Ponsoni, Jessica Bruna; Dias, Jeferson Almeida & Zepon, Guilherme [Show all 9 contributors for this article] (2025). Exploring the Dual-Phase Configuration of Multicomponent Alloys in the Ti21Zr21VxFeyNiz (x + y + z = 58 at%) System for Room Temperature Hydrogen Storage. Energy & Fuels. ISSN 0887-0624. 39(33), p. 15888–15902. doi: 10.1021/acs.energyfuels.5c03179. Full text in Research Archive Show summary

  This study investigates the dual-phase configuration of multicomponent alloys (MCAs) within the Ti21Zr21VxFeyNiz (x + y + z = 58 at %) system for hydrogen storage. The design strategy involved the use of the Calculation of Phase Diagrams (CALPHAD) method, which obtained four dual-phase alloys with varying proportions of C14 Laves and body-centered cubic (BCC) phases. All alloys exhibited fast hydrogen absorption kinetics, reaching maximum capacity within 5 min, and demonstrated good hydrogen storage capacity at room temperature. Ti21Zr21Fe41Ni17 (V1), with the lower BCC content (8.2 wt %), absorbed the lowest amount of hydrogen (1.2 wt %), whereas Ti21Zr21V14Fe4.3Ni39.7 (V4) absorbed up to 1.7 wt %. When analyzing the thermodynamics of the alloys, V1 exhibited a superior reversible hydrogen capacity of 0.91 wt % when compared to V4, which retained 0.56 wt %. This behavior is attributed to the thermodynamic stability of the C14 Laves phase, which predominantly governs the absorption characteristics at room temperature, as confirmed by pressure–composition–temperature (PCT) simulations, and to hydrogen retention within the BCC structure.

• Viole, Isabelle; Venegas, Guillermo Andrés Valenzuela; Sartori, Sabrina & Zeyringer, Marianne (2024). Integrated life cycle assessment in off-grid energy system design—Uncovering low hanging fruit for climate mitigation. Applied Energy. ISSN 0306-2619. 367. doi: 10.1016/j.apenergy.2024.123334. Full text in Research Archive
• Ravuri, SyamSai; Wrobel, Pawel S.; Gorantla, Sandeep; Bazioti, Kalliopi; Sunding, Martin Fleissner & Lis, Krzysztof [Show all 11 contributors for this article] (2024). High yield and wide lateral size growth of α-Mo2C: exploring the boundaries of CVD growth of bare MXene analogues. Nanotechnology. ISSN 0957-4484. 35(15). doi: 10.1088/1361-6528/ad1c97. Full text in Research Archive Show summary

  Synthesis of Mo2C bare MXenes, without surface terminations groups, via chemical vapor deposition (CVD) on metal foils is scientifically a very intriguing crystal growth process, and there are still challenges and limited fundamental understanding to overcome to obtain high yield and wide crystal size lateral growth. Achieving large area coverage via direct growth is scientifically vital to utilize the full potential of their unique properties in different applications. In this study, we sought to expand the boundaries of the current CVD growth approach for Mo2C MXenes and gain insights into the possibilities and limitations of large area growth, with a particular focus on controlling Mo concentration. We report a facile modification of their typical CVD growth protocol and show its influence on the Mo2C synthesis, with growth times spanning up to 3 h. Specifically, prior to initiating the CVD growth process, we introduced a holding step in temperature at 1095 °C. This proved to be beneficial in increasing the Mo concentration on the liquid Cu growth surface. We achieved an average Mo2C crystals coverage of approximately 50% of the growth substrate area, increased tendency of coalescence and merging of individual flakes, and lateral flake sizes up to 170 μm wide. To gain deeper understanding into their CVD growth behavior, we conducted a systematic investigation of the effect of several factors, including (i) a holding step time on Mo diffusion rate through molten Cu, (ii) the Cu foil thickness over the Mo foil, and (iii) the CVD growth time. Phase, chemical and microstructural characterization by x-ray diffraction, x-ray photon spectroscopy, SEM and scanning/transmission electron microscopy revealed that the grown crystals are single phase α-Mo2C. Furthermore, insights gained from this study sheds light on crucial factors and inherent limitations that are essential to consider and may help guide future research progress in CVD growth of bare MXenes.

• Viole, Isabelle; Shen, Li; Camargo, Luis Ramirez; Zeyringer, Marianne & Sartori, Sabrina (2024). Sustainable astronomy: A comparative life cycle assessment of off-grid hybrid energy systems to supply large telescopes. The International Journal of Life Cycle Assessment. ISSN 0948-3349. doi: 10.1007/s11367-024-02288-9. Full text in Research Archive
• Egeland-Eriksen, Torbjørn & Sartori, Sabrina (2024). Techno-economic analysis of the effect of a novel price-based control system on the hydrogen production for an offshore 1.5 GW wind-hydrogen system. Energy Reports. 11, p. 2633–2655. doi: 10.1016/j.egyr.2024.02.016. Full text in Research Archive Show summary

  The cost of green hydrogen production is very dependent on the price of electricity. A control system that can schedule hydrogen production based on forecast wind speed and electricity price should therefore be advantageous for large-scale wind-hydrogen systems. This work presents a novel price-based control system integrated in a techno-economic analysis of hydrogen production from offshore wind. A polynomial regression model that predicts wind power production from wind speed input was developed and tested with real-world datasets from a 2.3 MW floating offshore wind turbine. This was combined with a mathematical model of a PEM electrolyzer and used to simulate hydrogen production. A novel price-based control system was developed to decide when the system should produce hydrogen and when it should sell electricity to the grid. The model and control system can be used in real-world wind-hydrogen systems and require only the forecast wind speed, electricity price and selling price of hydrogen as inputs. 11 test scenarios based on 10 years of real-world wind speed and electricity price data are proposed and used to evaluate the effect the price-based control system has on the levelized cost of hydrogen (LCOH). Both current and future (2050) costs and technologies are used, and the results show that the novel control system lowered the LCOH in all scenarios by 10-46%. The lowest LCOH achieved with current technology and costs was 6.04 $/kg H2. Using the most optimistic forecasts for technology improvements and cost reductions in 2050, the model estimated a LCOH of 0.96 $/kg H2 for a grid-connected offshore wind farm and onshore hydrogen production, 0.82 $/kg H2 using grid electricity (onshore) and 4.96 $/kg H2 with an off-grid offshore wind-hydrogen system. When the electricity price from the period 2013-2022 was used on the 2050 scenarios, the resulting LCOH was approximately twice as high.

• Venegas, Guillermo Andrés Valenzuela; Lode, Maria Luisa; Viole, Isabelle; Felice, Alex; Alonso, Ander Martinez & Camargo, Luis Ramirez [Show all 8 contributors for this article] (2024). A renewable and socially accepted energy system for astronomical telescopes. Nature Sustainability. doi: 10.1038/s41893-024-01442-3. Full text in Research Archive Show summary

  Remote astronomical telescopes without access to the national electricity grid are usually designed to rely on fossil fuels without considering the social and energy needs of the surrounding communities. Concurrently, climate change concerns and fuel price vulnerability are driving the transition to renewable energy sources. Here we propose a socially accepted renewable energy system for a future telescope in the Atacama Desert, combining an energy system model with a participatory multi-criteria analysis. Our findings highlight the fact that various stakeholders, including local residents, the municipality, the existing local utility and observatories, prioritize emissions reduction, security of supply and reduced electricity costs. The results reveal that a system supplying renewable energy to the telescope could also cover 66% of a nearby community’s energy needs without additional capacity. Stakeholder inputs show that this is the most attractive solution by developing an energy system in which all the actors benefit. Replicating similar energy systems at nearby telescopes could reduce fossil fuel-based energy generation by 30 GWh annually, cutting emissions by 18–24 ktCO2e while contributing to energy justice. The proposed approach aims to promote social acceptance of renewable energy systems by involving stakeholders in the decision-making process, integrating benefit sharing among them and contributing to the region’s emissions reduction efforts.

• Sierra, Carolina Duque; Kocs, Elizabeth A.; Giannopoulos, George; Sartori, Sabrina; Vodovotz, Yael & Green, Peter (2024). Are we on track for 2050? A Materials Research & Sustainability Perspective. MRS Energy & Sustainability. ISSN 2329-2229. doi: 10.1557/s43581-024-00117-y. Full text in Research Archive
• Egeland-Eriksen, Torbjørn; Jensen, Jonas Flatgård; Ulleberg, Øystein & Sartori, Sabrina (2023). Simulating offshore hydrogen production via PEM electrolysis using real power production data from a 2.3 MW floating offshore wind turbine. International Journal of Hydrogen Energy. ISSN 0360-3199. 48(74), p. 28712–28732. doi: 10.1016/j.ijhydene.2023.03.471. Full text in Research Archive Show summary

  This work presents simulation results from a system where offshore wind power is used to produce hydrogen via electrolysis. Real-world data from a 2.3 MW floating offshore wind turbine and electricity price data from Nord Pool were used as input to a novel electrolyzer model. Data from five 31-day periods were combined with six system designs, and hydrogen production, system efficiency, and production cost were estimated. A comparison of the overall system performance shows that the hydrogen production and cost can vary by up to a factor of three between the cases. This illustrates the uncertainty related to the hydrogen production and profitability of these systems. The highest hydrogen production achieved in a 31-day period was 17 242 kg using a 1.852 MW electrolyzer (i.e., utilization factor of approximately 68%), the lowest hydrogen production cost was 4.53 $/kg H2, and the system efficiency was in the range 56.1–56.9% in all cases.

• Sartori, Sabrina; Amati, Matteo; Gregoratti, Luca; Jensen, Emil Høj; Kudriashova, Natalia & Huot, Jacques (2023). Study of Phase Composition in TiFe + 4 wt.% Zr Alloys by Scanning Photoemission Microscopy. Inorganics. 11(1). doi: 10.3390/inorganics11010026. Full text in Research Archive Show summary

  The alloy TiFe is widely used as hydrogen storage material. However, the first hydrogenation is difficult. It was found that the addition of zirconium greatly improves the kinetic of first hydrogenation, but the mechanism is not well understood. In this paper, we report the use of scanning photoemission microscopy to investigate the composition and chemical state of the various phases present in this alloy and how they change upon hydrogenation/dehydrogenation. We found the presence of different oxide phases that were not seen by conventional SEM investigation. The nature of these oxides phases seems to change upon hydrogenation/dehydrogenation cycle. This indicates that oxide phases may play a more significant role in the hydrogen absorption as what was previously believed.

• Jensen, Emil Høj; Lombardo, Loris; Girella, Alessandro; Guzik, Matylda N.; Züttel, Andreas & Milanese, Chiara [Show all 9 contributors for this article] (2023). The Effect of Y Content on Structural and Sorption Properties of A<inf>2</inf>B<inf>7</inf>-Type Phase in the La–Y–Ni–Al–Mn System. Molecules. ISSN 1431-5157. 28(9). doi: 10.3390/molecules28093749. Full text in Research Archive Show summary

  Metal hydrides are an interesting group of chemical compounds, able to store hydrogen in a reversible, compact and safe manner. Among them, A2B7-type intermetallic alloys based on La-Mg-Ni have attracted particular attention due to their high electrochemical hydrogen storage capacity (∼400 mAh/g) and extended cycle life. However, the presence of Mg makes their synthesis via conventional metallurgical routes challenging. Replacing Mg with Y is a viable approach. Herein, we present a systematic study for a series of compounds with a nominal composition of La2-xYxNi6.50Mn0.33Al0.17, x = 0.33, 0.67, 1.00, 1.33, 1.67, focusing on the relationship between the material structural properties and hydrogen sorption performances. The results show that while the hydrogen-induced phase amorphization occurs in the Y-poor samples (x < 1.00) already during the first hydrogen absorption, a higher Y content helps to maintain the material crystallinity during the hydrogenation cycles and increases its H-storage capacity (1.37 wt.% for x = 1.00 vs. 1.60 wt.% for x = 1.67 at 50 °C). Thermal conductivity experiments on the studied compositions indicate the importance of thermal transfer between powder individual particles and/or a measuring instrument.

• Viole, Isabelle; Venegas, Guillermo Andrés Valenzuela; Sartori, Sabrina & Zeyringer, Marianne (2023). Integrated Life Cycle Assessment in Off-Grid Energy System Design - Uncovering Low Hanging Fruit for Climate Mitigation. Social Science Research Network (SSRN). doi: 10.2139/ssrn.4656682. Full text in Research Archive
• Viole, Isabelle; Shen, Li; Camargo, Luis Ramirez; Zeyringer, Marianne & Sartori, Sabrina (2023). Sustainable Astronomy: A comparative Life Cycle Assessment of Off-grid Hybrid Energy Systems to supply large Telescopes. Research Square. ISSN 2693-5015. doi: 10.21203/rs.3.rs-3281965/v2. Full text in Research Archive
• Venegas, Guillermo Andrés Valenzuela; Lode, Maria Luisa; Viole, Isabelle; Felice, Alex; Alonso, Ander Martinez & Camargo, Luis Ramirez [Show all 8 contributors for this article] (2023). Designing renewable and socially accepted energy systems for astronomical telescopes: A move towards energy justice. Research Square. ISSN 2693-5015. doi: 10.21203/rs.3.rs-3181969/v1. Full text in Research Archive
• Viole, Isabelle; Shen, Li; Camargo, Luis Ramirez; Zeyringer, Marianne & Sartori, Sabrina (2023). Sustainable Astronomy: A comparative Life Cycle Assessment of Off-grid Hybrid Energy Systems to supply large Telescopes. Research Square. ISSN 2693-5015. doi: 10.21203/rs.3.rs-3281965/v2. Full text in Research Archive
• Viole, Isabelle; Venegas, Guillermo Andrés Valenzuela; Zeyringer, Marianne & Sartori, Sabrina (2023). A renewable power system for an off-grid sustainable telescope fueled by solar power, batteries and green hydrogen. Energy. ISSN 0360-5442. 282. doi: 10.1016/j.energy.2023.128570. Full text in Research Archive Show summary

  A large portion of astronomy’s carbon footprint stems from fossil fuels supplying the power demand of astronomical observatories. Here, we explore various isolated low-carbon power system setups for the newly planned Atacama Large Aperture Submillimeter Telescope, and compare them to a business-as-usual diesel power generated system. Technologies included in the designed systems are photovoltaics, concentrated solar power, diesel generators, batteries, and hydrogen storage. We adapt the electricity system optimization model highRES to this case study and feed it with the telescope’s projected energy demand, cost assumptions for the year 2030 and site-specific capacity factors. Our results show that the lowest-cost system with LCOEs of $116/MWh majorly uses photovoltaics paired with batteries and fuel cells running on imported and on-site produced green hydrogen. Some diesel generators run for backup. This solution would reduce the telescope’s power-side carbon footprint by 95% compared to the business-as-usual case.

• Pasquini, Luca; Sakaki, Kouji; Akiba, Etsuo; Allendorf, Mark D.; Alvares, Ebert & Ares, José R. [Show all 59 contributors for this article] (2022). Magnesium- and intermetallic alloys-based hydrides for energy storage: modelling, synthesis and properties. Progress in Energy. 4(3). doi: 10.1088/2516-1083/ac7190. Full text in Research Archive Show summary

  Abstract Hydrides based on magnesium and intermetallic compounds provide a viable solution to the challenge of energy storage from renewable sources, thanks to their ability to absorb and desorb hydrogen in a reversible way with a proper tuning of pressure and temperature conditions. Therefore, they are expected to play an important role in the clean energy transition and in the deployment of hydrogen as an efficient energy vector. This review, by experts of Task 40 ‘Energy Storage and Conversion based on Hydrogen’ of the Hydrogen Technology Collaboration Programme of the International Energy Agency, reports on the latest activities of the working group ‘Magnesium- and Intermetallic alloys-based Hydrides for Energy Storage’. The following topics are covered by the review: multiscale modelling of hydrides and hydrogen sorption mechanisms; synthesis and processing techniques; catalysts for hydrogen sorption in Mg; Mg-based nanostructures and new compounds; hydrides based on intermetallic TiFe alloys, high entropy alloys, Laves phases, and Pd-containing alloys. Finally, an outlook is presented on current worldwide investments and future research directions for hydrogen-based energy storage.

• Osnes, Idun; Yazidi, Anis; Jacobsen, Hans-Arno; Eliassen, Frank & Sartori, Sabrina (2022). Harnessing Task Usage Prediction and Latency Sensitivity for Scheduling Workloads in Wind-Powered Data Centers. Energies. 15(12). doi: 10.3390/en15124469. Full text in Research Archive Show summary

  The growing number of data centers consumes a vast amount of energy for processing. There is a desire to reduce the environmental footprint of the IT industry, and one way to achieve this is to use renewable energy sources. A challenge with using renewable resources is that the energy output is irregular as a consequence of the intermittent nature of this form of energy. In this paper, we propose a simple and yet efficient latency-aware workload scheduler that creates an energy-agile workload, by deferring tasks with low latency sensitivity to periods with excess renewable energy. The scheduler also increases the overall efficiency of the data center, by packing the workload into as few servers as possible, using neural-network-based predictions of resource usage on an individual task basis to avoid unnecessarily provisioning an excess number of servers. The scheduler was tested on a subset of real-world workload traces, and real-world wind-power generation data, simulating a small-scale data center co-located with a wind turbine. Extensive experimental results show that the devised scheduler reduced the number of servers doing work in periods of low wind-power production up to 93% of the time, by postponing tasks with a low latency sensitivity to a later interval.

• Cuevas, Fermin; Amdisen, Mads B.; Baricco, Marcello; Buckley, Craig E.; Cho, Young Whan & Jongh, Petra E. de [Show all 31 contributors for this article] (2022). Metallic and complex hydride-based electrochemical storage of energy. Progress in Energy. 4(3). doi: 10.1088/2516-1083/ac665b. Full text in Research Archive Show summary

  Abstract The development of efficient storage systems is one of the keys to the success of the energy transition. There are many ways to store energy, but among them, electrochemical storage is particularly valuable because it can store electrons produced by renewable energies with a very good efficiency. However, the solutions currently available on the market remain unsuitable in terms of storage capacity, recharging kinetics, durability, and cost. Technological breakthroughs are therefore expected to meet the growing need for energy storage. Within the framework of the Hydrogen Technology Collaboration Program—H 2 TCP Task-40, IEA’s expert researchers have developed innovative materials based on hydrides (metallic or complex) offering new solutions in the field of solid electrolytes and anodes for alkaline and ionic batteries. This review presents the state of the art of research in this field, from the most fundamental aspects to the applications in battery prototypes.

• Dornheim, Martin; Baetcke, Lars; Akiba, Etsuo; Ares, Jose-Ramón; Autrey, Tom & Barale, Jussara [Show all 29 contributors for this article] (2022). Research and development of hydrogen carrier based solutions for hydrogen compression and storage. Progress in Energy. 4(4). doi: 10.1088/2516-1083/ac7cb7. Full text in Research Archive Show summary

  Abstract Industrial and public interest in hydrogen technologies has risen strongly recently, as hydrogen is the ideal means for medium to long term energy storage, transport and usage in combination with renewable and green energy supply. In a future energy system, the production, storage and usage of green hydrogen is a key technology. Hydrogen is and will in future be even more used for industrial production processes as a reduction agent or for the production of synthetic hydrocarbons, especially in the chemical industry and in refineries. Under certain conditions material based systems for hydrogen storage and compression offer advantages over the classical systems based on gaseous or liquid hydrogen. This includes in particular lower maintenance costs, higher reliability and safety. Hydrogen storage is possible at pressures and temperatures much closer to ambient conditions. Hydrogen compression is possible without any moving parts and only by using waste heat. In this paper, we summarize the newest developments of hydrogen carriers for storage and compression and in addition, give an overview of the different research activities in this field.

• Øgaard, Mari Benedikte; Aarseth, Bjørn Lupton; Skomedal, Åsmund; Riise, Heine Nygard; Sartori, Sabrina & Selj, Josefine Helene Krogh (2021). Identifying snow in photovoltaic monitoring data for improved snow loss modeling and snow detection. Solar Energy. ISSN 0038-092X. 223, p. 238–247. doi: 10.1016/j.solener.2021.05.023. Full text in Research Archive Show summary

  As cost reductions have made photovoltaics (PV) a favorable choice also in colder climates, the number of PV plants in regions with snowfalls is increasing rapidly. Snow coverage on the PV modules will lead to significant power losses, which must be estimated and accounted for in order to achieve accurate energy yield assessment and production forecasts. Additionally, detection and separation of snow loss from other system losses is necessary to establish robust operation and maintenance (O&M) routines and performance evaluations. Snow loss models have been suggested in the literature, but developing general models is challenging, and validation of the models are lacking. Characterization and detection of snow events in PV data has not been widely discussed. In this paper, we identify the signatures in PV data caused by different types of snow cover, evaluate and improve snow loss modeling, and develop snow detection. The analysis is based on five years of data from a commercial PV system in Norway. In an evaluation of four snow loss models, the Marion model yields the best results. We find that system design and snow depth influence the natural snow clearing, and by expanding the Marion model to take this into account, the error in the modeled absolute loss for the tested system is reduced from 23% to 3%. Based on the improved modeling and the identified data signatures we detect 97% of the snow losses in the dataset. Endogenous snow detection constitutes a cost-effective improvement to current monitoring systems.

• Hajizadeh, Amin; Sartori, Sabrina & Egeland-Eriksen, Torbjørn (2021). Hydrogen-based systems for integration of renewable energy in power systems: Achievements and perspectives. International Journal of Hydrogen Energy. ISSN 0360-3199. 46, p. 31963–31983. doi: 10.1016/j.ijhydene.2021.06.218. Full text in Research Archive Show summary

  This paper is a critical review of selected real-world energy storage systems based on hydrogen, ranging from lab-scale systems to full-scale systems in continuous operation. 15 projects are presented with a critical overview of their concept and performance. A review of research related to power electronics, control systems and energy management strategies has been added to integrate the findings with outlooks usually described in separate literature. Results show that while hydrogen energy storage systems are technically feasible, they still require large cost reductions to become commercially attractive. A challenge that affects the cost per unit of energy is the low energy efficiency of some of the system components in real-world operating conditions. Due to losses in the conversion and storage processes, hydrogen energy storage systems lose anywhere between 60 and 85% of the incoming electricity with current technology. However, there are currently very few alternatives for long-term storage of electricity in power systems so the interest in hydrogen for this application remains high from both industry and academia. Additionally, it is expected that the share of intermittent renewable energy in power systems will increase in the coming decades. This could lead to technology development and cost reductions within hydrogen technology if this technology is needed to store excess renewable energy. Results from the reviewed projects indicate that the best solution from a technical viewpoint consists in hybrid systems where hydrogen is combined with shortterm energy storage technologies like batteries and supercapacitors. In these hybrid systems the advantages with each storage technology can be fully exploited to maximize efficiency if the system is specifically tailored to the given situation. The disadvantage is that this will obviously increase the complexity and total cost of the energy system. Therefore, control systems and energy management strategies are important factors to achieve optimal results, both in terms of efficiency and cost. By considering the reviewed projects and evaluating operation modes and control systems, new hybrid energy systems could be tailored to fit each situation and to reduce energy losses.

• Jensen, Emil Høj; Dornheim, Martin & Sartori, Sabrina (2021). Scaling Up Metal Hydrides for Real-Scale Applications: Achievements, Challenges and Outlook. Inorganics. 9(5). doi: 10.3390/inorganics9050037. Full text in Research Archive
• Baba, Elbruz Murat; Montero, Jose; Moldarev, Dimitrii; Moro, Marcos V.; Wolff, Max & Primetzhofer, Daniel [Show all 9 contributors for this article] (2020). Preferential Orientation of Photochromic Gadolinium Oxyhydride Films. Molecules. ISSN 1431-5157. 25(14). doi: 10.3390/molecules25143181. Full text in Research Archive Show summary

  We report preferential orientation control in photochromic gadolinium oxyhydride (GdHO) thin films deposited by a two-step process. Gadolinium hydride (GdH2-x) films were grown by reactive magnetron sputtering, followed by oxidation in air. The preferential orientation, grain size, anion concentrations and photochromic response of the films were strongly dependent on the deposition pressure. The GdHO films showed a preferential orientation along the [100] direction and exhibited photochromism when synthesized at deposition pressures of up to 5.8 Pa. The photochromic contrast was larger than 20% when the films were deposited below 2.8 Pa with a 0.22 H2/Ar flow ratio. We argue that the relation of preferential orientation and the post deposition oxidation since oxygen concentration is known to be a key parameter for photochromism in rare-earth oxyhydride thin films. The experimental observations described above were explained by the decrease of the grain size as a result of the increase of the deposition pressure of the sputtering gas, followed by a higher oxygen incorporation.

• Sartori, Sabrina (2020). Greening the production and utilization of ammonia. MRS bulletin. ISSN 0883-7694. 45(9), p. 698–699. doi: 10.1557/mrs.2020.238. Full text in Research Archive
• Øgaard, Mari B.; Riise, Heine Nygard; Haug, Halvard; Sartori, Sabrina & Selj, Josefine H. (2020). Photovoltaic system monitoring for high latitude locations. Solar Energy. ISSN 0038-092X. 207, p. 1045–1054. doi: 10.1016/j.solener.2020.07.043. Full text in Research Archive Show summary

  Reliable monitoring of PV systems is essential to establish efficient maintenance routines that minimize the levelized cost of electricity. The existing solutions for affordable monitoring of commercial PV systems are however inadequate for climates where snow and highly varying weather result in unstable performance metrics. The aim of this work is to decrease this instability to enable more reliable monitoring solutions for PV systems installed in these climates. Different performance metrics have been tested on Norwegian installations with a total installed capacity of 3.3 MW: (i) comparison of specific yield, (ii) temperature corrected performance ratio, and (iii) power performance index based on both physical modelling and machine learning. The most influential effects leading to instability are identified as snow, low light, curtailment, and systematic irradiance differences over the system. The standard deviation of all the performance metrics is reduced when filters targeting these four effects are applied. Compared to general low irradiance or clear sky filtering, a greater reduction in the variation of the metrics is achieved, and more data remains in the useful dataset. The most suitable performance metrics are comparison of specific yield and performance index based on machine learning modelling. The analysis highlights two paths to accomplish increased reliability of PV monitoring systems without increased hardware costs. First, better reliability can be achieved by selecting a suitable performance metric. Second, the variability of the performance metric can be reduced by utilizing filters that specifically target the origin of the variability instead of using standard literature thresholds.

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• Zschech, Ehrenfried; Sinclair, Robert; Martins, Rodrigo; Sebastiani, Marco & Sartori, Sabrina (2021). Characterization of Nanomaterials: Selected Papers from 6th Dresden Nanoanalysis Symposiumc. MDPI. ISBN 9783036507569. 139 p. Full text in Research Archive

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• Velasco-Herrejón, Paola; Viole, Isabelle; Venegas, Guillermo Andrés Valenzuela; Sartori, Sabrina & Zeyringer, Marianne (2025). Astronomy and energy justice in the Atacama Desert. In Mejía-Montero, Adolfo (Eds.), Energy Justice in Latin America. Routledge. ISSN 9781003492573. p. 181–197. Full text in Research Archive
• Sartori, Sabrina (2025). Winter School at Università Ca´Foscari Venezia, 7 February 2025. Full text in Research Archive
• Sartori, Sabrina (2025). Perspectives on the design of multicomponent alloys for hydrogen storage, Invited talk. Full text in Research Archive
• Sartori, Sabrina (2025). Lecturer, Erice School of Solid State Physics, ISMES XII, Ettore Majorana Foundation and Centre for Scientific Culture, Italy, July (A 2025). Full text in Research Archive
• Sartori, Sabrina (2025). Invited seminar, Molecular Sciences Research Hub, Imperial College London, UK, 2 September 2025. Full text in Research Archive
• Bazioti, Kalliopi; Gorantla, Sandeep; Mishra, Mochan; Diplas, Spyridon; Sartori, Sabrina & Koposov, Alexey [Show all 8 contributors for this article] (2025). In situ and operando TEM: real-time nanoscale insights into emerging materials for batteries. Full text in Research Archive
• Sartori, Sabrina; O’Hayre, Ryan & Shao, Zongping (2024). Materials for green hydrogen production, storage, and conversion. MRS bulletin. ISSN 0883-7694. doi: 10.1557/s43577-024-00719-4. Full text in Research Archive
• Sartori, Sabrina (2024). Invited keynote, Materials and systems for green hydrogen production and storage: challenges and opportunities towards sustainability, 2nd workshop "Multifunctional Materials and Sustainability" Scuola Superiore di Catania, 3 July 2024. Full text in Research Archive
• Sartori, Sabrina (2024). Designing a renewable energy system for AtLAST. Full text in Research Archive
• Sartori, Sabrina (2024). Materials science at the vanguard of sustainability: Insights from the 2023 MRS Fall Meeting & Exhibit. MRS Bulletin (2024). [Journal]. https://doi.org/10.1557/s43577-024-00684-y. Full text in Research Archive
• Sartori, Sabrina (2024). Interview of Sabrina Sartori, L' idrogeno verde tra sfide e opportunita', UniCt Magazine, 5 July 2024. Full text in Research Archive
• Bazioti, Kalliopi; Gorantla, Sandeep; Ravuri, SyamSai; Wrobel, Pawel S.; Mishra, Mochan & Sunding, Martin Fleissner [Show all 11 contributors for this article] (2024). Operando and in situ transmission electron microscopy: exploring real-time nanoscale phenomena of battery materials. Full text in Research Archive
• Bazioti, Kalliopi; Gorantla, Sandeep; Ravuri, SyamSai; Wrobel, Pawel S.; Sunding, Martin Fleissner & Sartori, Sabrina [Show all 9 contributors for this article] (2024). In situ and operando (S)TEM investigations of MXene-based anodes for Li-ion all-solid-state batteries. Full text in Research Archive
• Sartori, Sabrina; O’Hayre, Ryan & Shao, Zongping (2024). Correction to: Materials for green hydrogen production, storage, and conversion (MRS Bulletin, (2024), 10.1557/s43577-024-00719-4). MRS bulletin. ISSN 0883-7694. doi: 10.1557/s43577-024-00739-0. Full text in Research Archive
• Sartori, Sabrina (2024). Sustainable off-grid hybrid energy systems: the case of the astronomical telescope AtLAST, invited talk. Full text in Research Archive
• Sartori, Sabrina (2023). Materials Needs for Energy Sustainability by 2050: Yesterday, Today and Tomorrow, invited panelists Peter F. Green, Sabrina Sartori, Yael Vodovotz, MRS Fall meeting, Boston, 27 November 2023. Full text in Research Archive
• Sartori, Sabrina (2023). Materials Research Collaborations Between Scientists at African and Non-African Institutions: Successes, Challenges, and Opportunities, invited talk, workshop at MRS Fall meeting, Boston, 2023. Full text in Research Archive
• Viole, Isabelle; Venegas, Guillermo Andrés Valenzuela; Sartori, Sabrina & Zeyringer, Marianne (2023). Techno-environmental multi-objective optimization of energy systems for an off-grid telescope. Full text in Research Archive
• Sartori, Sabrina (2023). What does 50 years of MRS mean to me? MRS bulletin. ISSN 0883-7694. 48. doi: 10.1557/s43577-023-00486-8. Full text in Research Archive
• Sartori, Sabrina (2023). Celebrating 50 Years of MRS, interview with Sabrina Sartori, https://www.youtube.com/watch?v=F13e_k6Sv4M. Full text in Research Archive
• Sartori, Sabrina (2023). Half a century of the Materials Research Society, Nature Materials, 22, 667 (2023), https://doi.org/10.1038/s41563-023-01575-4. [Journal]. Nature Materials. Full text in Research Archive
• Sartori, Sabrina (2023). Innovation if fun and different, Webpage UiO, 20 January 2023. Full text in Research Archive
• Sartori, Sabrina (2023). Hun skal lede prestisje-organisasjon for materialforskere, Titan, 6 January 2023. Full text in Research Archive
• Sartori, Sabrina (2023). MRS YouTube interview, Sabrina Sartori on the 50th anniversary of MRS, April 2023. Full text in Research Archive
• Sartori, Sabrina (2023). What does 50 years of MRS mean to me? MRS bulletin. ISSN 0883-7694. doi: 10.1557/s43577-023-00486-8. Full text in Research Archive
• Bazioti, Kalliopi; Gorantla, Sandeep; Ravuri, SyamSai; Wrobel, Pawel S.; Sunding, Martin Fleissner & Sartori, Sabrina [Show all 9 contributors for this article] (2023). In situ and operando transmission electron microscopy investigations of MXene-based anodes for Li-ion all-solid-state batteries. Full text in Research Archive
• Bazioti, Kalliopi; Gorantla, Sandeep; Ravuri, SyamSai; Wrobel, Pawel S.; Sunding, Martin Fleissner & Sartori, Sabrina [Show all 9 contributors for this article] (2023). In situ and operando transmission electron microscopy: real-time nanoscale insights into emerging materials for batteries. Full text in Research Archive
• Viole, Isabelle; Venegas, Guillermo Andrés Valenzuela; Zeyringer, Marianne & Sartori, Sabrina (2023). Techno-Environmental Modelling of Energy Storage Systems for a Remote Telescope. Full text in Research Archive
• Viole, Isabelle; Venegas, Guillermo Andrés Valenzuela; Shen, Li; Camargo, Luis Ramirez & Sartori, Sabrina (2023). How to power an off-grid telescope? Comparative life cycle analysis of renewable-based energy systems. Full text in Research Archive
• Sartori, Sabrina (2023). Hydrogen, invited lecture at International School of Materials for Sustainable Development and Energy - ISMES X, Erice July 3-8 2023. Full text in Research Archive
• Sartori, Sabrina (2023). Invited keynote, The role of secondary phases and element substitutions in the hydrogenation of intermetallic compounds, International Symposium on Hydrogen and Energy, Emmetten, Switzerland. 22-26 January. Full text in Research Archive
• Bazioti, Kalliopi; Gorantla, Sandeep; Sunding, Martin Fleissner; Sartori, Sabrina; Diplas, Spyridon & Bachmatiuk, Alicja [Show all 7 contributors for this article] (2023). In situ and Operando Transmission Electron Microscopy investigations of novel 2D-based anodes for Li-ion all-solid-state batteries. Full text in Research Archive
• Sartori, Sabrina (2022). Invited talk: Game changing energy storage: The role of hydrogen, Propulsion Futures Beacon, UK, 23th February 2022. Full text in Research Archive
• Sartori, Sabrina (2022). Plenary invited talk, 23rd International Conference on Solid Compounds of Transition Elements (SCTE2022), 14-17 June 2022, Bordeaux, France. Full text in Research Archive
• Bazioti, Kalliopi; Gorantla, Sandeep; Sunding, Martin Fleissner; Sartori, Sabrina; Diplas, Spyridon & Bachmatiuk, Alicja [Show all 7 contributors for this article] (2022). Novel 2D-based anodes for Li-ion all-solid-state batteries. Full text in Research Archive
• Bazioti, Kalliopi; Gorantla, Sandeep; Sunding, Martin Fleissner; Sartori, Sabrina; Diplas, Spyridon & Bachmatiuk, Alicja [Show all 7 contributors for this article] (2022). In situ and Operando Transmission Electron Microscopy investigations of MXenes for Li-ion all-solid-state batteries. Full text in Research Archive
• Sartori, Sabrina (2022). Designing a hybrid power system for a remote telescope in the Atacama desert, Isabelle Viole, Guillermo Valenzuela-Venegas, Marianne Zeyringer, Øystein Ulleberg, Sabrina Sartori. Full text in Research Archive
• Sartori, Sabrina (2022). Invited talk, Hydrogen storage in intermetallic alloys suitable for stationary applications, Sabrina Sartori, Metal-Hydrogen Systems (MH2017), 30 October-3 November 2022, Perth, Australia. Full text in Research Archive
• Sartori, Sabrina (2022). Invited lecture, Small angle scattering for hydrogen-material investigation in energy storage, Sabrina Sartori, Summer School 28-29 October 2022, Perth (Australia). Full text in Research Archive
• Sartori, Sabrina; Viole, Isabelle & Venegas, Guillermo Andrés Valenzuela (2022). Grønn energi til å se ut i verdensrommet. Full text in Research Archive
• Sartori, Sabrina (2021). The first nine months of the project. [Internet]. webpage AtLAST. Full text in Research Archive
• Sartori, Sabrina (2021). AtLAST: our vision for a new telescope powered by renewable-based energy systems. Full text in Research Archive
• Sartori, Sabrina (2021). Hydrogen: Store muligheter, dårlig tid. Full text in Research Archive
• Sartori, Sabrina (2021). 2020 Virtual MRS Spring/Fall Meeting a successful, valuable experience, M Kim, R Naik, JM Rondinelli, H Wang, E Flatté, MP Rowe, S Sartori, P Shastri, C Wang, MRS Bulletin 46, 2021, 186-187. Full text in Research Archive
• Sartori, Sabrina (2021). The design of next-generation telescope starts now! [Internet]. https://www.atlast.uio.no/news-and-events/news/2021/The%20de. Full text in Research Archive
• Sartori, Sabrina (2021). Podcast interview of Sabrina Sartori about the Master in Renewable Energy Systems at UiO, 18 March 2021. Full text in Research Archive
• Sartori, Sabrina (2020). Meeting Chair for the 2020 MRS Fall Meeting, Boston (around 7,000 attendees), Boston, 29 November-4 December 2020. Full text in Research Archive
• Sartori, Sabrina (2020). Co-organizer and Lecturer of the university course “Science, innovation and sustainability of the future energy systems”, Scuola Superiore di Catania, 28 April-15 May, Catania, 2020. Full text in Research Archive
• Øgaard, Mari Benedikte; Aarseth, Bjørn Lupton; Skomedal, Åsmund; Riise, Heine Nygard; Sartori, Sabrina & Selj, Josefine Helene Krogh (2020). Identifying snow events in PV system data. Full text in Research Archive
• Sartori, Sabrina (2020). The Atacama Large Aperture Submillimetre Telescope (AtLAST). Full text in Research Archive
• Sartori, Sabrina (2020). Smart energilagring bidrar til å berge klimaet, Titan.uio.no. Full text in Research Archive
• Sartori, Sabrina (2020). Symposium organiser (Co-chair), European Nanoanalysis Symposium at E-MRS, Warsaw, October 2020. Full text in Research Archive
• Karatairi, Eva & Sartori, Sabrina (2020). Reviving hydrogen as an energy carrier. MRS bulletin. ISSN 0883-7694. 45(6), p. 424–426. doi: 10.1557/mrs.2020.157. Full text in Research Archive
• Sartori, Sabrina (2020). MRS TV Interviews Meeting Chair Sabrina Sartori, https://materials.typepad.com/mrs_meeting_scene/2020/11/mrs-tv-interviews-meeting-chair-sabrina-sartori.html. Full text in Research Archive
• Sartori, Sabrina (2022). Hydrogen from offshore wind - The role of life cycle assessment in the optimal infrastructure design, MSc Johan Gustafsson. DUO. Full text in Research Archive
• Sartori, Sabrina (2022). Cycle Life prediction of Lithium-ion Batteries Using Machine Learning, MSc Andreas Dyve. DUO. Full text in Research Archive
• Sartori, Sabrina (2022). Combined Hydrogen and Offshore Wind Production - Design and Market Value, MSc Kristin Alvestad. DUO. Full text in Research Archive
• Sartori, Sabrina (2022). Computational Fluid Dynamics simulation of thermal decomposition of monosilane in a Free Space Reactor, MSc Alexander Skorgen. DUO. Full text in Research Archive
• Hvidsten, Tobias; Karazhanov, Smagul; Sartori, Sabrina & Spalatu, Nicolae (2022). Antimony selenide based solar cells Fabrication, characterization, and modelling towards development of bifacial solar cells. Universitetet i Oslo. ISSN 9788292272169. Full text in Research Archive
• Osnes, Jørgen; Sartori, Sabrina & Seljom, Pernille Merethe Sire (2021). How will different politics affect the energy system? An energy political analysis of the political parties in Norway. Universitetet i Oslo. Full text in Research Archive Show summary

  Abstract A governmental election will be held in the fall of 2021 in Norway. The interest in energy and energy politics has been increasing and will be an essential topic for this election. However, the political parties have a wide range of politics regarding energy, renewable energy, pollution, and the environment. The political statements include several forms of energy production, usage, limitations, demands, and incentives. The politics are often vague and may not give a clear and consistent answer to what the political parties will do. Moreover, with a wide range of politics and nine political parties, it can be challenging for the public audience to interpret and understand the politics. Using the IFE-TIMES-Norway model, this thesis will translate and process the pollical data, then present key findings clearly and understandably. The model uses political data on energy production, transmission, export of energy, and end- use demand to simulate how the politics will affect the Norwegian energy system. The data allows predicting how politics will affect the growth in the energy system, the changes in the energy mix. The results also show and compare the type of electricity production used in the future energy system. Comparing different political parties with different politics on production, demand, and import and export of electricity give some trends regarding the electricity price. Norway also has clear goals of reducing CO2 emission by 50% in 2030 and carbon neutrality in 2050. However, some results may indicate that the political parties do not do enough to reach the goals of CO2 reduction. Despite the different politics, the modeling results show that the difference between the political party and their energy politics may not have the impact that was believed.

• Sandvei, Ulrik Mevik; Sartori, Sabrina & Forseth, Sissel (2021). Safety issues of Li-ion batteries – a methodology for determination of heat release during thermal runaway. Universitetet i Oslo. Full text in Research Archive
• Tuset, Jørgen Kristoffer; Ulleberg, Øystein; Sartori, Sabrina & Hancke, Ragnhild (2021). Modelling and Validation of a Fuel Cell Electric Bus. Universitetet i Oslo. Full text in Research Archive
• Kristine, Fuglestad & Sartori, Sabrina (2021). Building-integrated photovoltaics in Norway, challenges and standards. Universitetet i Oslo. Full text in Research Archive
• Zorogiannidis, Charilaos; Sartori, Sabrina & Guzik, Matylda N. (2021). Ti1.1CrMn and its hydrides for the application in thermal hydrogen compression. Universitetet i Oslo. Full text in Research Archive Show summary

  One of the methods to compress hydrogen gas is through the utilization of thermal metal hydride hydrogen compressors (TMHHCs) The present work aims to investigate the structural and thermodynamic properties of the Ti1.1CrMn intermetallic compound for the application in metal hydride-based hydrogen compression technologies developed for operation at high pressures (&gt;350 bar). Three powder samples of intermetallics, with the same nominal composition of Ti1.1CrMn, have been studied in collaboration with Greenway Energy, LLC (USA). One of the samples was provided by Japan Metals &amp; Chemicals Co. Ltd (hereafter referred to as JMC), while the two others were fabricated by the Ames Laboratory (USA), of which one contained as-synthesized (hereafter referred to as AMES-as-cast), while the other one the annealed (hereafter referred to as AMES-annealed) material. The samples were investigated by powder X-ray diffraction (PXD) and/or pressure-composition-temperature (PCT) measurements. The PXD data of the JMC sample show the presence of a hexagonal Ti1.1CrMn phase, which is a C14 Laves phase. The powder diffraction pattern of the AMES-as-cast also confirms the formation of hexagonal Ti1.1CrMn, however with notably lower crystallinity. Interestingly, in the AMES-annealed, the presence of two hexagonal Ti1.1CrMn-based phases are clearly observed. The PCT profiles for JMC indicate a single plateau region at 35 bar (at 22oC) during the hydrogen desorption. For AMES-annealed two plateau regions at 23oC can be identified, 1st plateau at 39 bar and 2nd plateau at 78 bar. By comparing the present PXD and PCT results with the previously reported structural and thermodynamic data for Ti1.1CrMn, the second plateau in the PCT profile of AMES-annealed can be attributed to one of the identified Ti1.1CrMn-based phase, with the smaller unit cell parameters. For JMC, the plateau pressure is significantly lower (for desorption 35 bar at 22oC) than values reported in literature ( ~80 bar at 19oC). The higher hydrogen absorption and desorption pressures observed for the AMES-annealed material, as compared to JMC, are advantageous in view of its potential application in TMHHC. However, the presence of two plateau regions in this sample severely limits its usability due to the reduced amount of the desired phase available for compression of hydrogen at the required higher pressure.

• Jensen, Jonas Flatgård; Sartori, Sabrina; Ulleberg, Øystein & Ragnhild, Hancke (2021). Proton Exchange Membrane Water Electrolyzer Modeling - Performance during dynamic operation. Universitetet i Oslo. Full text in Research Archive
• Torp, Sondre; Sartori, Sabrina; Bjørheim, Tor Svendsen; Froudakis, George E. & Fanourgakis, George S. (2020). Prediction of battery materials properties with machine learning: Developing algorithms to discover electrodes for Li-ion and Mg-ion batteries. Universitetet i Oslo. Full text in Research Archive

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