Influence of flow field design on the performance of a direct methanol fuel cell

被引：110

作者：

Aricò, AS ^{[1
]}

Cretì, P ^{[1
]}

Baglio, V ^{[1
]}

Modica, E ^{[1
]}

Antonucci, V ^{[1
]}

机构：

[1] CNR, TAE, Inst Transformat & Storage Energy, I-98126 Messina, Italy

来源：

JOURNAL OF POWER SOURCES | 2000年 / 91卷 / 02期

关键词：

direct methanol fuel cells (DMFCs); Pt-Ru catalysts; interdigitated flow fields; mass-transport; unsupported catalysts; fuel cell performance;

D O I：

10.1016/S0378-7753(00)00471-7

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 ; 081704 ;

摘要：

Serpentine (SFF) and interdigitated (IFF) flow fields were investigated with regard to their use in a direct methanol fuel cell (DMFC). The DMFC equipped with SFFs showed lower methanol cross-over, higher fuel utilisation and slightly larger voltage efficiency at low current densities. IFFs enhanced mass transport and membrane humidification allowing to achieve high power densities of 450 and 290 mW cm(-2) in the presence of oxygen and air feed, respectively, at 130 degreesC. A fuel efficiency of 90% was obtained with the IFFs in the presence of 1 M methanol feed at 130 degreesC and a current load of 500 mA cm(-2). (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：202 / 209

页数：8

共 22 条

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