Development of porous carbon electrodes for direct methanol fuel cells

被引：16

作者：

Ramkumar, R

Dheenadayalan, S

Pattabiraman, R ^{[1
]}

机构：

[1] Cent Electrochem Res Inst, Karaikkudi 630006, Tamil Nadu, India

[2] Natl Coll, Tiruchirappalli 620002, Tamil Nadu, India

来源：

JOURNAL OF POWER SOURCES | 1997年 / 69卷 / 1-2期

关键词：

fuel cells; electrocatalysts; platinum; ruthenium; methanol;

D O I：

10.1016/S0378-7753(97)02572-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Porous carbon electrodes containing platinum and platinum-ruthenium catalysts are prepared by a rolling technique with polytetrafluoroethylene as a binder. The 5 and 10 wt.% of the catalyst is deposited on a carbon substrate (Vulcan XC-72) by a colloidal dispersion technique. Half-cell polarization studies in 2.50 M H2SO4 electrolyte containing CH3OH (1.0-3.0 M) have been carried out. The polarization values of electrodes containing platinum-ruthenium are lower than that of catalysts containing platinum only. Porous electrodes containing 2-5.0 mg cm(-2) of catalyst exhibit a polarization value of less than 300 mV at 100 mA cm(-2) at 60 degrees C in 2.50 M H2SO4. (C) 1997 Elsevier Science S.A.

引用

页码：75 / 80

页数：6