nayerehs

• Rahman, Jamil Ur; Soltani, Nayereh; Sunding, Martin Fleissner; Løvvik, Ole Martin; Gunnæs, Anette Eleonora & Finstad, Terje Gunnar [Show all 7 contributors for this article] (2024). Deciphering the structure of a high entropy Heusler antimonide. Acta Materialia. ISSN 1359-6454.
• Soltani, Nayereh; Rahman, Jamil Ur; Almeida Carvalho, Patricia & Finstad, Terje Gunnar (2023). A Highly Active and Reusable Multicomponent high Entropy Metal Oxide Catalyst for Nitroarenes Hydrogenation. Topics in catalysis. ISSN 1022-5528. doi: 10.1007/s11244-023-01846-z. Full text in Research Archive Show summary

  It is well known that multicomponent catalysts can improve catalytic performance, however their rational design and precise control of catalytic activities by varying the composition of the elements is challenging. Herein, we present a facile and scalable synthetic strategy for production of senary and septenary metal oxide nanoparticles with a chemical composition of MSbOx and MSb2Ox (M: Fe, Ni, Co, Cu, and Zn). All samples were formed in a tetragonal crystal structure with space group 136 and crystallographic symmetry P42/mnm while the details of their constituent unit cells are different, belonging to rutile or trirutile structures. These nanocomposites have an oxygen vacancy-rich construction with uniform elemental distributions that produce various surface functionalities. They showed instantaneous hydrogenation catalytic performance for reduction of 4-nitrophenol to 4-aminophenol at room temperature. Among our samples, the senary catalyst with MSbOx chemical composition showed better durability and reusability owning to its morphological and microstructural properties. It showed 100% conversion of 4-nitrophenol to 4-aminophenol within 4 min at the 18th run without any by-products.

• Soltani, Nayereh; Rahman, Jamil Ur; Almeida Carvalho, Patricia & Finstad, Terje Gunnar (2023). Towards multicomponent intermetallic nanoparticles as efficient and low-cost catalysts. Journal of Alloys and Compounds. ISSN 0925-8388. 956, p. 1–11. doi: 10.1016/j.jallcom.2023.170254.
• Soltani, Nayereh; Rahman, Jamil Ur; Almeida Carvalho, Patricia; Bazioti, Kalliopi & Finstad, Terje Gunnar (2022). From quaternary to senary high entropy antimonide nanoparticles by a facile and scalable thermal treatment method. Materials research bulletin. ISSN 0025-5408. 153. doi: 10.1016/j.materresbull.2022.111873. Full text in Research Archive Show summary

  Transition metal antimonides form a class of intermetallic compounds, which has drawn considerable attention due to their potential applications in various fields. However, the formation of nanostructures containing multiple transition metal elements has been a challenge. Here, a new class of multicomponent antimonide nanoparticles with chemical composition ranging from quaternary to senary were synthesized via a simple, reproducible, and scalable thermal treatment method. This method allows uniform elemental distributions in a single nanoparticle, demonstrating the ability to obtain medium- and high-entropy antimonide nanostructures. The mechanism of formation was proposed and the characteristics of obtained nanoparticles were investigated by X-ray diffraction, field emission scanning electron microscopy, and high-resolution transmission electron microscopy. Under the achieved optimal synthesis conditions, the formation of a single-phase with a hexagonal structure (P63/mmc) was observed for the quaternary and quinary samples, whereas in the case of the senary samples, a trace of minor impurity can be observed.

• Rahman, Jamil Ur; Almeida Carvalho, Patricia; Soltani, Nayereh; Schrade, Matthias; Gunnæs, Anette Eleonora & Finstad, Terje Gunnar (2022). Synthesis, microstructure, and thermoelectric properties of Sb-Based high entropy alloys. Intermetallics (Barking). ISSN 0966-9795. 143. doi: 10.1016/j.intermet.2022.107495. Full text in Research Archive Show summary

  In this paper, we explore the synthesis of new antimonide compounds based upon concepts of high entropy alloys (HEA). HEAs are usually multi-element (⪆5) alloys with near the equiatomic composition. They have been given very large attention due to their vast potential within many fields. We investigated the thermoelectric transport properties of antimony-based high entropy alloys. The observed electrical conductivity, Seebeck coefficient, and thermal conductivity were comparable to those of cutting-edge half-Heusler thermoelectric alloys. Alloys with different valence electron counts (VEC) were synthesized and correlated with measured electrical properties.

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• Soltani, Nayereh; Rahman, Jamil Ur; Almeida, Patricia & Finstad, Terje Gunnar (2023). Correction to: A Highly Active and Reusable Multicomponent high Entropy Metal Oxide Catalyst for Nitroarenes Hydrogenation (Topics in Catalysis, (2023), 10.1007/s11244-023-01846-z). Topics in catalysis. ISSN 1022-5528. doi: 10.1007/s11244-023-01852-1.
• Finstad, Terje Gunnar; Mayandi, Jeyanthinath; Soltani, Nayereh; Pokle, Anuj; Løvvik, Ole Martin & Almeida Carvalho, Patricia (2023). TiFe2Si Thin Films.
• Mayandi, Jeyanthinath; Soltani, Nayereh; Finstad, Terje Gunnar; Karlsen, Ole Bjørn & Flage-Larsen, Espen (2022). Zinc Multi-Pnictogens Semiconductors: Cu Doping and Thermoelectric Characteristics.
• Almeida Carvalho, Patricia; Rahman, Jamil Ur; Soltani, Nayereh; Schrade, Matthias; Stange, Marit Synnøve Sæverud & Gunnæs, Anette Eleonora [Show all 8 contributors for this article] (2021). Functional high entropy antimonides and silicides.
• Almeida Carvalho, Patricia; Mayandi, Jeyanthinath; Rahman, Jamil Ur; Soltani, Nayereh; Schrade, Matthias & Gunnæs, Anette Eleonora [Show all 9 contributors for this article] (2021). Exploring the structure of high entropy oxides, silicides and antimonides for functional applications.
• Soltani, Nayereh; Rahman, Jamil Ur; Almeida Carvalho, Patricia & Finstad, Terje (2021). Multicomponent transition metal antimonide nanoparticles.
• Rahman, Jamil Ur; Almeida Carvalho, Patricia; Soltani, Nayereh; Schrade, Matthias; Karlson, Ole Bjørn & Eleonora Gunnæs, Anette [Show all 7 contributors for this article] (2021). A study of new Sb-based high entropy alloys synthesized by non-conventional methods.
• Rahman, Jamil Ur; Almeida Carvalho, Patricia; Guzik, Matylda N.; Soltani, Nayereh; Eleonora Gunnæs, Anette & Karlsena, Ole Bjørn [Show all 7 contributors for this article] (2021). Synthesis and crystal structure of Sb-based high entropy alloys.

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