Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 37, Issue 7, Pages 5850-5865Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2011.12.148
Keywords
Gas diffusion layer; Water management; Proton exchange membrane fuel cell; Macroporous substrate; Microporous layer
Categories
Funding
- National Science Foundation [CBET -966956]
- DOE [DE-EE0000460]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0966956] Funding Source: National Science Foundation
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The gas diffusion layer (GDL) plays a key role on reactant gas diffusion and water management in proton exchange membrane (PEM) fuel cells. This paper reviews recent developments of single- and dual-layer GDLs for PEM fuel cells and various materials and approaches used for development of novel GDL. A variety of carbon- and metal-based macroporous substrates are presented. Hydrophobic treatments using different fluorinated polymers are addressed. Engineering parameters which control the performance of microporous layer such as carbon treatment, wettability, thickness, and microstructure are also reviewed. In addition, future prospects for development of new GDL development are discussed. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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