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Interfacial phenomena in low temperature fuel cells

Author
Ross, P. N.
Published
United States : [publisher not identified], 1986
Springfield, Va.: National Technical Information Service, [approximately 1986]
Physical Description
microfiche : negative ; 11 x 15 cm

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Summary
The critical action point in a fuel cell is in the gas-diffusion electrode. The solid catalyst surface is utilized more effectively if it is covered by a very thin film of electrolyte. In addition to the interfacial chemistry that controls the transport of reactant to the catalyst surface, there is the interfacial chemistry of the catalytic reaction, i.e. the electrocatalysis of the fuel and air electrode reactions. There are three regimes (10-50 nm, 10-2 nm, and less than or equal to 2 nm) of particle size in electrocatalysts. The voltammetry curve of Pt(111) in dilute sulfuric acid is discussed. There seems to be no connection between the electrochemistry at ideal Pt surfaces and the real surfaces which form on supported metals. Metal dissolution and related phenomena are discussed. Recommendations for research are outlined. (DLC)
Report Numbers
DE86015193; LBL-21769; CONF-8605119-2
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC03-76SF00098
OSTI Identifier 5340583
Research organization: Lawrence Berkeley Lab., CA (USA). Materials and Molecular Research Div.
View MARC record | catkey: 47368096