Heteropolyacid in glass electrolytes for the development of H2/O2 fuel cells

被引：3
|
作者：
Uma, T. [1 ]
Nogami, M. [1 ]
机构：
[1] Nagoya Inst Technol, Dept Mat Sci & Engn, Showa Ku, Nagoya, Aichi 4668555, Japan
来源：
ELECTROCHIMICA ACTA | 2007年 / 52卷 / 24期
基金：
日本学术振兴会;
关键词：
H-2/O-2 fuel cell; glass; Pt/C electrode; PMA; Electrochemistry;
D O I：
10.1016/j.electacta.2007.04.116
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The scope of the present work was to investigate and evaluate the electrochemical activity of H-2/O-2 fuel cells based on the influence of a heteropolyacid glass membrane with a Pt/C electrode at low temperature. A new trend of sol-gel derived PMA (H3PMo12O40) heteropolyacid-containing glass membranes inherent of a high proton conductivity and mechanical stability, was heat treated at 600 degrees C and implemented to H-2/O-2 fuel cell activities through electrochemical characterization. Significant research has been focused on the development of H-2/O-2 fuel cells using optimization of heteropolyacid glasses as electrolytes with Pt/C electrodes at 30 degrees C. A maximum power density of 23.9 mW/cm(2) was attained for operation with hydrogen and oxygen, respectively, at 30 degrees C and 30% humidity with the PMA glass membranes (4-92-4 mol%). Impedance spectroscopy measurements were performed on a total ohmic cell resistance of a membrane-electrode-assembly (MEA) at the end of the experiment. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6895 / 6900
页数：6
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