Development of ruthenium-based bimetallic electrocatalysts for oxygen reduction reaction

被引:40
作者
Liu, Lingyun [1 ]
Lee, Jong-Won [1 ]
Popov, Branko N. [1 ]
机构
[1] Univ S Carolina, Dept Chem Engn, Ctr Electrochem Engn, Columbia, SC 29208 USA
关键词
ruthenium; bimetallic electrocatalyst; oxygen reduction; proton exchange membrane fuel cell;
D O I
10.1016/j.jpowsour.2006.08.003
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
Ruthenium-based bimetallic electrocatalysts with non-noble metals such as Ti, Cr, Fe, Co and Pb were synthesized on a porous carbon support using a chelation process. Rotating ring disk electrode measurements indicated that RuFeNx/C showed the catalytic activity and selectivity toward the four-electron reduction of oxygen to water comparable to those of the conventional Pt/C catalysts. The performance of the membrane-electrode assembly prepared with the RuFeNx/C cathode catalyst was evaluated for 150 h of continuous operation. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1099 / 1103
页数:5
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