An intermediate temperature proton-conducting electrolyte based on a CsH2PO4/SiP2O7 composite

被引：62

作者：

Matsui, T ^{[1
]}

Kukino, T ^{[1
]}

Kikuchi, R ^{[1
]}

Eguchi, K ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Energy & Hydrocarbon Chem, Nishikyo Ku, Kyoto 6158510, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 05期

关键词：

D O I：

10.1149/1.1883906

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A proton-conductive electrolyte based on a CsH2PO4/SiP2O7 composite was synthesized, and its electrochemical properties were investigated in the temperature range of 110-287 degrees C. Addition of SiP2O7 as supporting matrix brought about the structural change of conduction phase, CsH2PO4, into CsH5(PO4)(2). The resultant composite electrolyte showed high thermal stability and conductivity under 30% H2O/Ar atmosphere. The maximum conductivity achieved was 44 mS cm(-1) at 266 degrees C. Furthermore, the temperature dependence of the conductivity showed no conductivity-jump inherent in the CsH2PO4-based composite. (C) 2005 The Electrochemical Society.

引用

页码：A256 / A258

页数：3

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