Abstract
Vanadium(III) and Vanadium(V) oxides react with antimony tetroxide in an atmosphere of flowing dry oxygen-free nitrogen to give biphasic products composed of non-stoicheiometric vanadium antimonate, VSb 1−y)O 4−2y (O < y < 0.1) and antimony tetroxide. Antimony(III) oxide reacts with vanadium(IV) oxide under similar conditions at 670 °C to give a material of formula VOSb 2O 4. Reactions between antimony tetroxide and vanadium(V) oxide in air, although incomplete, give rise to the formation of oxidised vanadium antimonate, V 1−ySb 1−yO 4 (O < y < 0.1). A material of formula Sb 2V 2O 9 has not been identified. The results are discussed within the context of the mechanism of solid state reactions between antimony- and vanadium-oxides.
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