Performance and impedance under various catalyst layer thicknesses in DMFC

被引：47

作者：

Lee, JS

Han, KI

Park, SO

Kim, HN

Kim, H

机构：

[1] Seoul Natl Univ, Sch Chem, Seoul 152742, South Korea

[2] LG Chem Ltd, Corp R&D, Taejon 305380, South Korea

来源：

ELECTROCHIMICA ACTA | 2004年 / 50卷 / 2-3期

关键词：

DMFCs; pt-ru; catalyst layer; mass transport; impedance;

D O I：

10.1016/j.electacta.2004.01.116

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Carbon supported platinum-ruthenium (Pt-Ru) alloy catalysts were prepared with varying metal contents by the surfactant stabilized colloidal method. We investigated the degree of alloying with X-ray diffraction (XRD) and morphology with high-resolution transmission electron microscopy (HR-TEM). Based on Nafion 115 membrane, MEAs were fabricated by spray method using a mixed slurry of Nation solution and the prepared PtRu/C catalysts. The electrochemical impedance method was used to investigate the relationship between mass transport and performance. (C) 2004 Elsevier Ltd. All rights reserved.

引用

收藏

页码：807 / 810

页数：4

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