Selective Cathode Catalysts for Mixed-reactant Alkaline Alcohol Fuel Cells

✍ Scribed by H. Meng; M. Wu; X. X. Hu; M. Nie; Z. D. Wei; P. K. Shen

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 223 KB
• Volume: 6
• Category: Article
• ISSN: 1615-6846
• DOI: 10.1002/fuce.200600007

✦ Synopsis

Abstract

A highly selective Ag‐W~2~C/C electrocatalyst for oxygen reduction is developed for potential application in mixed‐reactant alcohol fuel cells. The catalysts are prepared by an intermittent microwave heating (IMH) method. Both the W~2~C/C and Ag‐W~2~C/C show catalytic activity for oxygen reduction in alkaline media. The introduction of W~2~C into the Ag/C results in an enhanced activity that is evidenced by a positive movement in the onset potential and an increased current density at the same conditions. The novelty of the Ag‐W~2~C/C catalyst is the high selectivity for oxygen reduction in the presence of alcohol.