A carbon-aerogel-supported Pt catalyst with pore size distribution and low Pt loading has been tested in a proton exchange membrane fuel cell (PEMFC). The performance of the PEMFC and kinetic parameters of the catalyst at room temperature are discussed in terms of microstructure of the support and sulfonated tetrafluoroethylene (Nafion) distribution. The PEMFCs demonstrated power densities up to at in air∕hydrogen and backpressure on both cathode and anode. Continuous cycling with upper potential sweep limits of 1.0 and leads to degradation effects that result in decreasing of the electrochemical surface area (ESA) of the catalyst. The comparison of an ESA decrease for a 1.0 and sweep limit after indicated that the higher degradation effects are due to the oxidation of carbon support.
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e-mail: alevtina@engr.uconn.edu
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November 2006
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Aerogel-Based PEMFC Catalysts Operating at Room Temperature
A. Smirnova,
A. Smirnova
Department of Materials Science and Engineering, Connecticut Global Fuel Cell Center,
e-mail: alevtina@engr.uconn.edu
UCONN
, 44 Weaver Road, Storrs, CT 06269-5233
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X. Dong,
X. Dong
Aerogel Composite
, LLC c∕o ICA, Inc., 102-R Filley Street, Unit H, Bloomfield CT 06002-1853
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H. Hara,
H. Hara
Aerogel Composite
, LLC c∕o ICA, Inc., 102-R Filley Street, Unit H, Bloomfield CT 06002-1853
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N. Sammes
N. Sammes
Department of Mechanical Engineering,
UCONN
, 44 Weaver Road, Storrs, CT 06269-5233
Search for other works by this author on:
A. Smirnova
Department of Materials Science and Engineering, Connecticut Global Fuel Cell Center,
UCONN
, 44 Weaver Road, Storrs, CT 06269-5233e-mail: alevtina@engr.uconn.edu
X. Dong
Aerogel Composite
, LLC c∕o ICA, Inc., 102-R Filley Street, Unit H, Bloomfield CT 06002-1853
H. Hara
Aerogel Composite
, LLC c∕o ICA, Inc., 102-R Filley Street, Unit H, Bloomfield CT 06002-1853
N. Sammes
Department of Mechanical Engineering,
UCONN
, 44 Weaver Road, Storrs, CT 06269-5233J. Fuel Cell Sci. Technol. Nov 2006, 3(4): 477-481 (5 pages)
Published Online: May 4, 2006
Article history
Received:
December 11, 2005
Revised:
May 4, 2006
Citation
Smirnova, A., Dong, X., Hara, H., and Sammes, N. (May 4, 2006). "Aerogel-Based PEMFC Catalysts Operating at Room Temperature." ASME. J. Fuel Cell Sci. Technol. November 2006; 3(4): 477–481. https://doi.org/10.1115/1.2349532
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