Fuel cell catalyst layers containing short-side-chain perfluorosulfonic acid ionomers

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DOIResolve DOI: http://doi.org/10.1016/j.jpowsour.2010.06.050
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TypeArticle
Journal titleJournal of Power Sources
Volume196
Issue1
Pages179181; # of pages: 3
Subjectshort-side-chain PFSA ionomer; PEMFC; catalyst layers; low equivalent weight; fuel cells; PEM
AbstractPorous catalyst layers (CLs) containing short-side-chain (SSC) perfluorosulfonic acid (PFSA) ionomers of different ion exchange capacity (IEC: 1.3, 1.4 and 1.5meqg−1) were deposited onto Nafion 211 to form catalyst-coated membranes. The porosity of SSC-PFSA-based CLs is larger than Nafion-CL analogues. CLs incorporating SSC ionomer extend the current density of fuel cell polarization curves at elevated temperature and lower relative humidity compared to those based on long-side chain PFSA (e.g., Nafion)-based CLs. Fuel cell polarization performance was greatly improved at 110 ◦C and 30% relative humidity (RH) when SSC PFSI was incorporated into the catalyst layer.
Publication date
LanguageEnglish
AffiliationNRC Institute for Fuel Cell Innovation; National Research Council Canada
Peer reviewedYes
NPARC number19542552
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Record identifierc5006e64-65ee-4a44-b983-980b523fc274
Record created2012-02-24
Record modified2016-05-09
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