Dag Kristian Sannes

• Skorynina, Alina A.; Lazzarini, Andrea; Sannes, Dag Kristian; Kozyr, Elizaveta G.; Ahoba-Sam, Christian & Bordiga, Silvia [Show all 8 contributors for this article] (2024). The structure of Pd-functionalized UiO-67 during CO<inf>2</inf> hydrogenation. Journal of Materials Chemistry C. ISSN 2050-7526. 10. doi: 10.1039/d3tc04175a.
• Pulumati, Sri Harsha; Sannes, Dag Kristian; Jabbour, Christia R.; Mandemaker, Laurens D. B.; Weckhuysen, Bert M. & Olsbye, Unni [Show all 8 contributors for this article] (2023). Mechanistic Insights in the Catalytic Hydrogenation of CO<inf>2</inf> over Pt Nanoparticles in UiO-67 Metal-Organic Frameworks. ACS Catalysis. ISSN 2155-5435. 14(1), p. 382–394. doi: 10.1021/acscatal.3c03401. Full text in Research Archive
• Tezel, Elif; Sannes, Dag Kristian; Svelle, Stian; Szilagyi, Petra Agota & Olsbye, Unni (2023). Direct CO<inf>2</inf> to methanol reduction on Zr<inf>6</inf>-MOF based composite catalysts: a critical review. Materials Advances. ISSN 2633-5409. doi: 10.1039/d3ma00345k. Show summary

  The pressing problem of climate change on account of anthropogenic greenhouse-gas emissions underlines the necessity for carbon capture and utilisation technologies. Several heterogeneous catalyst systems allowing the conversion of waste CO2 into desirable products, such as methanol, have emerged as promising and potentially viable solutions to this perennial problem. In particular, composite catalysts based on hexanuclear zirconium metal–organic framework matrices have shown much promise in the direct conversion of CO2 into value-added and useful products. Herein, we critically review the literature in this area and relate differences in composition, defect chemistry, and structural characteristics, their reaction conditions with their performance and stability in the thermocatalytic hydrogenation of CO2 to methanol, on the basis of both experimental and theoretical studies. We also highlight the obstacles in directly comparing the performance of these systems for CO2 hydrogenation and suggest potential solutions and opportunities for further advancement.

• Sannes, Dag Kristian; Øien-Ødegaard, Sigurd; Aunan, Erlend ; Nova, Ainara & Olsbye, Unni (2023). Quantification of Linker Defects in UiO-Type Metal-Organic Frameworks. Chemistry of Materials. ISSN 0897-4756. 35(10), p. 3793–3800. doi: 10.1021/acs.chemmater.2c03744. Full text in Research Archive

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• Sannes, Dag Kristian; Øien-Ødegaard, Sigurd; Aunan, Erlend; Nova Flores, Ainara & Olsbye, Unni (2023). Quantification of linker defects in UiO-type metal-organic frameworks.
• Sannes, Dag Kristian; Øien-Ødegaard, Sigurd; Aunan, Erlend; Nova, Ainara & Olsbye, Unni (2022). Reliable determination of linker defects in UiO-type metal-organic frameworks.
• Sannes, Dag Kristian; Øien-Ødegaard, Sigurd; Aunan, Erlend; Nova, Ainara & Olsbye, Unni (2022). Reliable determination of linker defects in UiO-type metal-organic frameworks.
• Sannes, Dag Kristian & Lillerud, Karl Petter (2020). Synthesis and characterization of 2,6-NDC zirconium MOF. Universitetet i Oslo. Show summary

  Metal organic frameworks(MOFs) arehybridthree-dimensional crystalline materials built frominorganicmetal ions or metal clusters connected with multidentateorganic linkers. MOFs are interesting materials because of itshigh surface area and easily tunable chemistry. The extensive toolkit developed for synthetic organic chemistrycan be utilized to simply changethe organic linkersboth before the assembly of the MOF but also on the crystalline solid. MOFs are excellent materials forapplication inmolecule adsorption and separation, electrochemistry, drug delivery and catalysis. One challenge withmetalorganic frameworksis their low thermal, chemical and mechanical stability. A relatively new group of MOFs discovered at University of Oslo(UiO)in 2008,is receiving enormous attentiondue to its superior thermal, chemical and mechanical stabilitycompared to other types of MOFs.The major experimental work in this thesis has been the synthesis of zirconium 2,6-naphthalene dicarboxylic(2,6-NDC)MOF, one of the least studied members of the UiO-Zr-MOF family.Missing linker and missing cluster defects have been observed and characterized for the zirconium 2,6-NDC MOF. The stability of the 2,6-NDC MOF in high humidity have been compared to UiO-66and UiO-67. The major characterization tools have beenpowder X–ray diffraction, thermogravimetric analysis, nitrogen adsorption, nuclear magnetic resonance and scanning electron microscope.

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