An Anhydrous Proton-Conducting Material Prepared by Hybridizing Zinc Phosphate Glass with Imidazole

被引：4
|
作者：
Kasuga, Toshihiro [1 ]
Oka, Masahiro [1 ]
Obata, Akiko [1 ]
机构：
[1] Nagoya Inst Technol, Grad Sch Engn, Dept Frontier Mat, Nagoya, Aichi 4668555, Japan
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2009年 / 12卷 / 02期
基金：
日本科学技术振兴机构;
关键词：
amorphous state; composite materials; electrolytes; heating; ionic conductivity; organic compounds; zinc compounds; POLYMER ELECTROLYTE MEMBRANES; COMPOSITE-MATERIAL; FUEL-CELLS; MECHANISM; DYNAMICS;
D O I：
10.1149/1.3028638
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
An intermediate temperature proton-conducting amorphous material was prepared utilizing the reaction of zinc metaphosphate glass powders with imidazole. The anhydrous material, consisting of Zn-coordinated imidazole and imidazole/phosphoric acid composite groups with imidazole, showed no decrease in weight even after heating at 200 degrees C. It showed high electrical conductivities of 0.2-4 mS cm(-1) at the temperature range of 110-180 degrees C. The activation energy for electrical conduction (similar to 0.6 eV) was close to that for proton transport between basic heterocycle molecules. A H(2)/O(2) fuel cell test using the material as the electrolyte showed an output power of 16 mW cm(-2) at 150 degrees C.
引用
收藏
页码：B5 / B7
页数：3
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