New approach to prepare Pt-based hydrogen diffusion anodes tolerant to CO for polymer electrolyte membrane fuel cells

被引：17

作者：

Alcaide, Francisco ^{[1
]}

Miguel, Oscar ^{[1
]}

Grande, Hans-Juergen ^{[1
]}

机构：

[1] Ctr Electrochem Technol, CIDETEC, Dept Energy, E-20009 Donostia San Sebastian, Spain

来源：

CATALYSIS TODAY | 2006年 / 116卷 / 03期

关键词：

platinum-ruthenium; CO tolerance; pulse electrodeposition; PEMFC; hydrogen oxidation;

D O I：

10.1016/j.cattod.2006.05.077

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A new approach to prepare Pt-based hydrogen diffusion anodes for PEMFCs based on galvanostatic pulsed electrodeposition is demonstrated to be a reliable alternative to the conventional electrode preparation methods. The performance of the PtRu electrodeposited anodes depends on the electrodeposition parameters such as the peak current, on time, off time, and the total charge applied. The peak current density and the relaxation time are crucial in the control of electrode performance. Electrodes prepared using a cathodic peak current of 0.400 A cm(-2), a duty cycle of 5.66% and a charge density of 6 C cm(-2) demonstrate high catalytic performance towards hydrogen oxidation. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：408 / 414

页数：7

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