Solid-state mechanochemical synthesis of CsHSO4 and 1,2,4-triazole inorganic-organic composite electrolytes for dry fuel cells

被引：10
|
作者：
Oh, Song-Yul [2 ]
Yoshida, Toshihiro [2 ]
Kawamura, Go [1 ]
Muto, Hiroyuki [1 ,2 ]
Matsuda, Atsunori [1 ,2 ]
机构：
[1] Toyohashi Univ Technol, Dept Elect & Elect Informat Engn, Toyohashi, Aichi 4418580, Japan
[2] Toyohashi Univ Technol, Dept Environm & Life Sci, Toyohashi, Aichi 4418580, Japan
来源：
ELECTROCHIMICA ACTA | 2011年 / 56卷 / 05期
基金：
日本学术振兴会;
关键词：
Dry fuel cells; CsHSO4; 1,2,4-Triazole; Solid-state mechanochemical treatment; Inorganic-organic composite electrolyte; PROTON CONDUCTIVITY; HIGH-TEMPERATURE; MEMBRANES; ACID; SALTS; TRANSITIONS;
D O I：
10.1016/j.electacta.2010.11.035
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Inorganic-organic composite electrolytes for use in dry fuel cells were synthesized from CsHSO4 (CHS) and 1,2,4-triazole (Tz). CHS and Tz were mechanochemically treated in a dry nitrogen atmosphere to obtain composites with xCHS.(100 - x)Tz, where x is the amount (mol) and was varied in increments of 10 between 90 and 50. Structural investigation of the composites indicated that chemical interactions occurred between CHS and Tz after solid-state mechanochemical treatment. The proton conductivity of the composite electrolytes was largely increased by introduction of Tz, particularly in the low temperature region. The composite with x = 80 showed high proton conductivity (6.0 x 10(-4) to 1.60 x 10(-3) S cm(-1)) over a wide temperature range (60-160 degrees C) in a dry atmosphere. These observations suggest that proton transfer in the CHS and Tz composite systems includes the proton-hopping mechanism and self-dissociation. This phenomenon probably supports proton diffusion, especially in low temperature regions. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2364 / 2371
页数：8
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