Kurig, S.; Ketter, F.; Frommelius, A.; Hakala, B.V.; van Leusen, J.; Friese, K.; Dronskowski, R. Exploring the Structure and Properties of VwSeyTe2−y Mixed Crystals in the VTe2–VSe2 System. Inorganics2023, 11, 481.
Kurig, S.; Ketter, F.; Frommelius, A.; Hakala, B.V.; van Leusen, J.; Friese, K.; Dronskowski, R. Exploring the Structure and Properties of VwSeyTe2−y Mixed Crystals in the VTe2–VSe2 System. Inorganics 2023, 11, 481.
Kurig, S.; Ketter, F.; Frommelius, A.; Hakala, B.V.; van Leusen, J.; Friese, K.; Dronskowski, R. Exploring the Structure and Properties of VwSeyTe2−y Mixed Crystals in the VTe2–VSe2 System. Inorganics2023, 11, 481.
Kurig, S.; Ketter, F.; Frommelius, A.; Hakala, B.V.; van Leusen, J.; Friese, K.; Dronskowski, R. Exploring the Structure and Properties of VwSeyTe2−y Mixed Crystals in the VTe2–VSe2 System. Inorganics 2023, 11, 481.
Abstract
Vanadium(IV) chalcogenide materials are of increasing interest for use in catalysis and energy conversion-related applications. Since no ternary compounds are yet known in the V–Se–Te system, we studied ternary VwSeyTe2–y (w = 1.10, 1.13; y = 0.42, 0.72) phases crystallizing in space group P3m1 (no. 164). Two single-crystal specimens with differing compositions of a solid solution were obtained using the ceramic method. All products were characterized by either single-crystal or powder X-ray diffraction. The lattice parameters increase with rising tellurium content in accordance to the larger ionic radius of the tellurium anion compared to selenium. The chemical compositions were confirmed by energy dispersive X-ray spectroscopy. Further, magnetic measurements revealed mostly antiferromagnetic properties. Simultaneous differential scanning calorimetry/thermogravimetric analyses in nitrogen atmosphere showed endothermic decomposition accompanied by the formation of VN. The results of this work can serve as a basis for the synthesis of new phases in the V–Se–Te and related vanadium chalcogenide systems.
Chemistry and Materials Science, Inorganic and Nuclear Chemistry
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