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Title: Conductive polymer layers to limit transfer of fuel reactants to catalysts of fuel cells to reduce reactant crossover

An apparatus of an aspect includes a fuel cell catalyst layer. The fuel cell catalyst layer is operable to catalyze a reaction involving a fuel reactant. A fuel cell gas diffusion layer is coupled with the fuel cell catalyst layer. The fuel cell gas diffusion layer includes a porous electrically conductive material. The porous electrically conductive material is operable to allow the fuel reactant to transfer through the fuel cell gas diffusion layer to reach the fuel cell catalyst layer. The porous electrically conductive material is also operable to conduct electrons associated with the reaction through the fuel cell gas diffusion layer. An electrically conductive polymer material is coupled with the fuel cell gas diffusion layer. The electrically conductive polymer material is operable to limit transfer of the fuel reactant to the fuel cell catalyst layer.
Inventors:
;
Issue Date:
OSTI Identifier:
1334518
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
Patent Number(s):
9,515,340
Application Number:
13/081,381
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2011 Apr 06
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

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journal, January 2010
  • Stanis, Ronald J.; Yaklin, Melissa A.; Cornelius, Chris J.
  • Journal of Power Sources, Vol. 195, Issue 1, p. 104-110
  • DOI: 10.1016/j.jpowsour.2009.06.082

Effect of operating conditions on energy efficiency for a small passive direct methanol fuel cell
journal, August 2006

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journal, August 2005

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