An influence of a gas velocity on morphology of molybdenum oxide nanoparticles generated by a glowing wire generator

•Process of controlled nano-object production by glowing wire generator is suggested.•Nanoparticle morphology could be changed by single process parameter alteration.•Substantial cost-effective technological benefits to users of nano-objects.

In this paper we report the results of investigation of a gas carrier velocity influence on morphology and structure of molybdenum oxide nanoparticles, produced by a glowing wire generator. The device operational principle is based on electrical resistance related heating of a metal wire and placement it into relatively cool and not ionized gas carrier for rapid solidification of vapour released from the wire surface. The results show that the suggested system is capable of producing a variety of nanostructures by changing a single process parameter—velocity of the gas carrier.