Enhancement of proton exchange membrane fuel cell performance by doping microporous layers of gas diffusion layers with multiwall carbon nanotubes

被引：61

作者：

Schweiss, Ruediger ^{[1
]}

Steeb, Marcus ^{[1
]}

Wilde, Peter M. ^{[1
]}

Schubert, Tim ^{[2
]}

机构：

[1] SGL Carbon GmbH, D-86405 Meitingen, Germany

[2] FutureCarbon GmbH, D-95448 Bayreuth, Germany

来源：

JOURNAL OF POWER SOURCES | 2012年 / 220卷

关键词：

Carbon nanotubes; Gas diffusion layer; PEM fuel cell; Microporous layers; MASS-TRANSPORT; CATHODE GDL; ELECTRODES; WATER; MANAGEMENT; POROSITY;

D O I：

10.1016/j.jpowsour.2012.07.078

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：

Microporous layers (MPLs) of gas diffusion layers (GDLs) were modified by multiwall carbon nanotubes (MWCNTs) using a wet-chemical approach. Carbon nanotubes were dispersed along with other MPL components and coated onto a GDL backing. The electronic resistance of the GDL was significantly reduced by the addition of MWCNTs. A larger mean pore diameter was obtained as compared to the reference substrates. The improved performance of proton exchange membrane fuel cells (PEMFCs) using such CNT-doped GDLs is attributed to a lower electronic resistance along with improved mass transport. Synergy effects of different carbon materials with MWCNTs and advanced dispersion processes were found to play a key role in achieving the performance improvements. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：79 / 83

页数：5

共 41 条

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