Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 157, Issue 11, Pages B1643-B1650Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3481443
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Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Bullitt Foundation
- University of Toronto
- Bert Wasmund Graduate Fellowship in Sustainable Energy Research
- Government of Ontario/Bez Tabarrok Memorial Graduate Scholarship in Science and Technology
- Pierre Rivard Hydrogenics Fellowship
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A first comparison is made of the heterogeneous porosity distributions of various polymer electrolyte membrane fuel cell (PEMFC) gas diffusion layer (GDL) materials. Microscale computed tomography imaging is performed for three main categories of commercially available GDL materials: carbon fiber paper, felt, and cloth. The methodology to analyze the through-plane and in-plane porosities of various materials is presented, and the relationship between heterogeneous porosity distributions and manufacturing techniques is discussed. This work also provides insight into the manufacturing process employed for GDLs. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3481443] All rights reserved.
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