Studies on preparation and conductivity of solid high-proton conductor molybdotungstovanadogermanic heteropoly acid

被引：15

作者：

Wu, QY ^{[1
]}

Lin, HH

Meng, GY

机构：

[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China

[2] Liaoning Univ, Inst Chem Sci & Engn, Shenyang 110036, Peoples R China

来源：

MATERIALS LETTERS | 1999年 / 39卷 / 03期

基金：

中国国家自然科学基金;

关键词：

heteropolyacid; molybdotungstovanadogermanic acid; conductivity;

D O I：

10.1016/S0167-577X(98)00228-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new solid high-proton conductor molybdotungstovanadogermanic heteropoly acid H5GeW9Mo2VO40. 22H(2)O has been prepared for the first time by the stepwise acidification and the stepwise addition of solutions of the component elements. The product was characterized by chemical analysis, potentiometric titration, IR, UV, XRD and TG-DTA. The results of AC impedance measurement show that its proton conductivity at 18 degrees C is 2.79 x 10(-4) S cm(-1) and the activation energy for proton conduction is 35.64 kJ/mol. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：129 / 132

页数：4

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