Pt/WC as an anode catalyst for PEMFC: Activity and CO tolerance

被引：88

作者：

Ham, Dong Jin ^{[1
,2
]}

Kim, Young Kwon ^{[1
,2
]}

Han, Seung Hyun ^{[1
,2
]}

Lee, Jae Sung ^{[1
,2
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Chem Engn, Ecofriendly Catalysis & Energy Lab NRL, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol, Sch Environm Engn, Pohang 790784, South Korea

来源：

CATALYSIS TODAY | 2008年 / 132卷 / 1-4期

关键词：

Pu/WC; mesoporous; CO tolerance; hydrogen oxidation; fuel cells;

D O I：

10.1016/j.cattod.2007.12.076

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A mesoporous tungsten carbide of WC-phase was synthesized by using ammonium meta tungstate as tungsten precursor and resorcinol-formaldehyde polymer as carbon source in the presence of a surfactant. The platinum supported on this material with a low loading (7.5 wt%) served as an effective CO tolerant electro anode catalyst. The Pt[WC catalyst showed two times higher activity per mass of Pt for hydrogen electrooxidation compared to a commercial Pt/C catalyst (E-Teck). In addition, it exhibited much improved resistance to CO poisoning relative to the Pt/C catalyst. Since the catalyst is also stable in electrochemical environment, it could become an alternative anode catalyst for PEMFC. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：117 / 122

页数：6

共 19 条

[1] Electrocatalytic activity of some carburised nickel, tungsten and molybdenum compounds [J].