Plasma dynamic synthesis of nanodispersed cubic tungsten oxide in a carbon dioxide environment

I. I. Shanenkov, D. S. Nikitin, A. Nasyrbaev, Yu. L. Shanenkova, A. A. Sivkov

Tomsk Polytechnic University

Abstract: A nanodispersed W–O powder was successfully synthesized in a pulsed arc discharge plasma flowing into a gaseous CO$_2$ environment. The resulting product is characterized by the presence of a metastable, cubic modification of $c$-WO$_3$, 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 $\sim$90% by mass of the $c$-WO$_3$ crystalline phase in the form of nanoscale particles.

Keywords: plasma, arc discharge, tungsten oxide, nanopowders.

Received: 25.06.2025
Revised: 01.08.2025
Accepted: 11.08.2025

DOI: 10.61011/PJTF.2025.22.61575.20417

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