PREPARATION OF HIGH-PLATINUM-UTILIZATION GAS-DIFFUSION ELECTRODES FOR PROTON-EXCHANGE-MEMBRANE FUEL-CELLS

被引：173

作者：

TAYLOR, EJ ^{[1
]}

ANDERSON, EB ^{[1
]}

VILAMBI, NRK ^{[1
]}

机构：

[1] PHYS SCI INC,ANDOVER,MA 01810

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1992年 / 139卷 / 05期

关键词：

D O I：

10.1149/1.2069439

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We evaluated an electrochemical catalyzation technique for producing gas-diffusion electrodes for proton-exchange-membrane fuel cells (PEMFC). The electrochemical technique deposits platinum catalyst particles in regions of the electrode that are in ionic contact with the proton-exchange membrane and in electronic contact with the carbon support. Since ionic and electronic contact are necessary components of catalyst utilization in gas-diffusion electrodes, the electrochemical catalyzation technique reduces the amount of platinum required for PEMFC. We present data for oxygen reduction and hydrogen oxidation with gas-diffusion electrodes containing 0.05 mg pt/cm2.

引用

页码：L45 / L46

页数：2