Nanostructured platinum catalyst layer prepared by pulsed electrodeposition for use in PEM fuel cells

被引：56

作者：

Rajalakshmi, N. ^{[1
]}

Dhathathreyan, K. S. ^{[1
]}

机构：

[1] ARC Int, Ctr Fuel Cell Technol, Madras 600100, Tamil Nadu, India

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 20期

关键词：

PEMFC; Pulsed electrodeposition; Platinum; Fuel cells; Catalyst layer;

D O I：

10.1016/j.ijhydene.2008.05.100

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 [物理化学]; 081704 [应用化学];

摘要：

Nanostructured thin catalyst layer with uniform distribution of platinum particles on a GDL useful for PEM fuel cell was obtained by preferential pulsed electrodeposition. (PED) from a dilute solution of chloroplatinic acid. A low platinum loading on the electrode was obtained by PED method, without any loss in fuel cell performance compared with electrodes prepared by conventional brush coating method. The electrodeposition was optimized by varying the duty cycle and current density. The fuel cell performance was found to be 350 mA/cm(2) at an operating voltage of 0.6 V at 60 degrees C with hydrogen and air as reactants at ambient pressure. The nanostructured thin catalyst layer showed a very less ohmic resistance of 0.00076 m Omega/cm(2). (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：5672 / 5677

页数：6

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