Plasma dynamic synthesis of nanodispersed cubic tungsten oxide in a carbon dioxide environment
Shanenkov I. I.1, Nikitin D.S.1, Nassyrbayev A.1, Shanenkova Yu. L.1, Sivkov A. A.1
1Tomsk Polytechnic University, Tomsk, Russia
Email: nikitindmsr@yandex.ru
A nanodispersed W-O powder was successfully synthesized in a pulsed arc discharge plasma flowing into a gaseous CO2 environment. The resulting product is characterized by the presence of a metastable, cubic modification of c-WO3, the existence of which in natural conditions has been controversial until now. Examination of the product using XRD analysis and transmission electron microscopy revealed that it contains ~ 90 by mass of the c-WO3 crystalline phase in the form of nanoscale particles. Keywords: plasma, arc discharge, tungsten oxide, nanopowders.
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