Synthesis of Tungsten, Molybdenum and Vanadium Bronzes by Mechanochemical Method Milling with Liquid Hydrocarbons

Abstract

The oxide bronzes have been synthesized by the mechanochemical method. It was found that the deep-blue tungsten bronze was obtained by more than 12 hours milling with adding the non-polar liquid hydrocarbons. X-ray diffraction and TG-DTA measurements revealed that hydrogen content in the obtained bronzes can be controlled by milling time. Molybdenum and vanadium bronzes were also found to be formed by milling MoO₃ and V₂O₅ powders milled with xylene. A self-supported membrane was prepared by casting the milled molybdenum bronze and ion exchange resin with acethilcellrose, which was electrolyzed to observe the elecrochromic behavior.