Perspective ion-conducting materials based on complex tungstates

4th School-Seminar of Young Russian Scientists "Problems of Sustainable Regional Development", dedicated to the 70th anniversary of Academician of the Russian Academy of Sciences Arnold Kirillovich Tulokhonov

自然科学（总论）

Dorzhieva, S.G.^1 ; Bazarov, B.G.^1 ; Subanakov, A.K.^1 ; Bazarova, J.G.^1

Baikal Institute of Nature Management SB RAS, Ulan-Ude

670047, Russia^1

关键词: Ceramic technologies;    Dielectric measurements;    General formulas;    High frequency HF;    Impedance spectrum;    Ion conducting materials;    Novel electrolytes;    Single-phase samples;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/320/1/012051/pdf
DOI  :  10.1088/1755-1315/320/1/012051

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

Novel electrolytes based on complex tungstates with general formula CsRTi0.5(WO4)3 (R = Al, Cr) were investigated. X-ray diffraction results show that the single-phase samples can be formed by ceramic technology at 1023 K. Dielectric measurement results indicate that the conductivity of CsCrTi0.5(WO4)3 can reach 0.0011 S cm-1 at 1023 K. The activation energy of the compound calculated according to the Arrhenius plots are 0.4-0.6 eV for T > 873 K. Impedance spectra of the ceramic samples at different temperatures are characterized the high frequency semicircle and a straight line at low frequencies, which is typical for ion-conducting materials. CsRTi0.5(WO4)3 (R = Al, Cr) ceramic materials correspond to a new strategy to design novel electrolytes for various applications.