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High performance electrodes for low pressure H{sub 2}-air PEM fuel cell

Conference:

Abstract

Proton exchange membrane fuel cells (PEMFCs) were first developed for space applications in the 1960s. Currently, they are being manufactured for terrestrial portable power applications. One of the challenges is to develop a low pressure H{sub 2}/Air PEMFC in order to minimize the cathodic mass transport overpotentials. The hydrogen oxidation reaction is considered to be sufficiently rapid. Hydrogen transport limitations are very low even at high current densities. The different applications considered for hydrogen/air PEMFC need to work at atmospheric pressure. An optimization of the structure of the oxygen electrode and the membrane electrode assembly (MEA) are essential in order to decrease mass transport limitations and to obtain good water management even at low pressures. Efforts have been made to produce electrodes and MEA for PEMFC with low platinum loading. The electrode structure was developed to ensure a good diffusion of reactants and an effective charge collection. It has also been optimized for low pressure restrictions. It was concluded that high performances can be achieved even at low pressures by improving the electrode gas diffusion layer (PTFE content) and by improving the catalyst. 12 refs., 7 figs.
Authors:
Besse, S; Bronoel, G; Fauvarque, J F [1] 
  1. Laboratoires SORAPEC (France)
Publication Date:
Dec 31, 1997
Product Type:
Conference
Report Number:
CONF-970738-
Reference Number:
SCA: 300500; PA: CANM-97:003196; EDB-98:005447; SN: 98001892943
Resource Relation:
Conference: 2. international symposium on new materials for fuel cell and modern battery systems, Montreal (Canada), 6-10 Jul 1997; Other Information: PBD: 1997; Related Information: Is Part Of New materials for fuel cell and modern battery systems: Proceedings of a symposium; Savadogo, O.; Roberge, P.R. [eds.]; PB: 914 p.
Subject:
30 DIRECT ENERGY CONVERSION; FUEL CELLS; HYDROGEN FUEL CELLS; PRESSURE DEPENDENCE; CATALYSTS; PORTABLE EQUIPMENT
Sponsoring Organizations:
Ecole Polytechnique, Montreal, PQ (Canada). Dept. of Metallurgy and Materials Engineering; Quebec Ministere de l`Energie et des Ressources, PQ (Canada)
OSTI ID:
555476
Research Organizations:
Ecole Polytechnique, Montreal, PQ (Canada)
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ISBN 2-533-00624-1; TRN: CA9703196
Availability:
Available from Ecole Polytechnique de Montreal, C.P. 6079, Succursale Centre-ville, Montreal, Quebec, H3C 3A7
Submitting Site:
CANM
Size:
pp. 309-317
Announcement Date:

Conference:

Citation Formats

Besse, S, Bronoel, G, and Fauvarque, J F. High performance electrodes for low pressure H{sub 2}-air PEM fuel cell. Canada: N. p., 1997. Web.
Besse, S, Bronoel, G, & Fauvarque, J F. High performance electrodes for low pressure H{sub 2}-air PEM fuel cell. Canada.
Besse, S, Bronoel, G, and Fauvarque, J F. 1997. "High performance electrodes for low pressure H{sub 2}-air PEM fuel cell." Canada.
@misc{etde_555476,
title = {High performance electrodes for low pressure H{sub 2}-air PEM fuel cell}
author = {Besse, S, Bronoel, G, and Fauvarque, J F}
abstractNote = {Proton exchange membrane fuel cells (PEMFCs) were first developed for space applications in the 1960s. Currently, they are being manufactured for terrestrial portable power applications. One of the challenges is to develop a low pressure H{sub 2}/Air PEMFC in order to minimize the cathodic mass transport overpotentials. The hydrogen oxidation reaction is considered to be sufficiently rapid. Hydrogen transport limitations are very low even at high current densities. The different applications considered for hydrogen/air PEMFC need to work at atmospheric pressure. An optimization of the structure of the oxygen electrode and the membrane electrode assembly (MEA) are essential in order to decrease mass transport limitations and to obtain good water management even at low pressures. Efforts have been made to produce electrodes and MEA for PEMFC with low platinum loading. The electrode structure was developed to ensure a good diffusion of reactants and an effective charge collection. It has also been optimized for low pressure restrictions. It was concluded that high performances can be achieved even at low pressures by improving the electrode gas diffusion layer (PTFE content) and by improving the catalyst. 12 refs., 7 figs.}
place = {Canada}
year = {1997}
month = {Dec}
}