Gas diffusion substrate and electrode

H - Electricity – 01 – M

Patent

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Details

H01M 8/10 (2006.01) H01M 4/86 (2006.01) H01M 4/90 (2006.01) H01M 4/92 (2006.01)

Patent

CA 2374238

An electrically conducting gas diffusion substrate, capable of removing oxidisable impurities from an impure gas stream, which comprises an electrically conducting porous structure and a first catalytic component, wherein the first catalytic component comprises a first catalyst supported on an electrically non- conducting support is disclosed. In addition, an electrode, a membrane electrode assembly and a fuel cell each comprising said electrically conducting gas diffusion substrate is disclosed.

L'invention concerne un substrat de diffusion de gaz conducteur d'électricité capable d'évacuer des impuretés oxydables d'un flux de gaz impur, qui comprend une structure poreuse conductrice d'électricité et un premier composant catalytique, ledit premier composant catalytique comprenant un premier catalyseur disposé sur un support non conducteur d'électricité. En outre, l'invention se rapporte à une électrode, à un ensemble d'électrodes de membrane et à une pile à combustible dont chacun comprend ce substrat de diffusion de gaz conducteur d'électricité.

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