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Preparation of Vanadium powder and vanadium–titanium alloys by the electroreduction of V2O3 and TiO2 powders

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  Electroreduction of solid V2O3 pellets (∼0.7 g) to V in aqueous CaCl2 at 900 °C has been advised by circadian voltammetry and potentiostatic electrolysis, calm with scanning electron microscopy, activity dispersive x-ray, and basal analyses. The average articles of the potentiostatic electrolysis are various, basic some lower valence accompaniment compounds (VO, V16O3, V7O3, VO0.2) and college valence accompaniment which are acceptable VO2, CaVO3, or CaV2O5.

  At potentials added abrogating than −0.6 V against Ag/AgCl, accomplished Vanadium powder(aggregates of asperous ∼500 nm particles) can be able by electrolysis of absorptive solid of the V2O3 pellets. The accepted ability and activity burning were satisfactory, about 53.4% and 2.5 kW h/(kg V) at −0.6 V against Ag/AgCl, respectively. Moreover, V–20Ti alloys were electrochemically actinic by connected voltage electrolysis at the adumbrated potentials, the ascendancy of agreement as able-bodied as the abridgement enhancement of the mixtures were demonstrated.

  This electrochemical avenue is able and offers a artefact with controlled stoichiometry, with accurate advantage of accomplishment of low amount alloys and intermetallics anon from alloyed oxide precursors, and has abeyant to aftermath anatomic vanadium alloys.