Synthesis and Properties of Vanadium Substituted Bismuth Tungstates with Fluorite-like Structure

Chimica Techno Acta

Sophia A. Petrova¹  Irina E. Sabirova²  Elena S. Buyanova²  Olga S. Kaimieva² 

[1] Institute of Metallurgy, Ural Branch of Academy of Sciences, Ekaterinburg;Ural Federal University, Ekaterinburg;

关键词: bismuth tungstate;    fluorite-like structure;    oxide-ion conductivity;    solid electrolyte;   

DOI  :  10.15826/chimtech.2019.6.2.02

来源: DOAJ

【 摘 要 】

The samples of vanadium substituted bismuth tungstates with a cubic structure were obtained by solid state method. The unit cell volume of the compounds slightly contracts with increasing tungsten content and in case of vanadium doping. Thermal expansion coefficient of bismuth tungstate is equal to 13×10-6 °C-1. The electrical conductivity was investigated using ac impedance spectroscopy. The results showed that the substitution of tungsten with vanadium ions increased electrical conductivity values by one order of magnitude.

【 授权许可】

Unknown