H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/92 (2006.01) C25B 11/08 (2006.01) H01M 4/86 (2006.01) H01M 4/88 (2006.01) H01M 8/10 (2006.01)
Patent
CA 2422083
An anode structure comprising a ruthenium catalyst is disclosed. The catalyst consists essentially of ruthenium deposited on a conducting support wherein the ruthenium is in metallic form or in a form that is readily reducible to the metallic form at temperatures of 25 ~C to 150 ~C. The anode structure is particularly of use in proton exchange membrane fuel cell to prevent poisoning of the electrocatalyst by impurities in the fuel stream to the anode.
L'invention concerne une structure d'anode comprenant un catalyseur à base de ruthénium. Ce catalyseur se compose principalement de ruthénium déposé sur un support conducteur, le ruthénium se trouvant sous forme métallique ou sous une forme pouvant être rapidement réduite à la forme métallique à des températures comprises entre 25 ·C et 150 ·C. Cette structure d'anode est particulièrement utile dans une pile à combustible à membrane d'échange de protons pour empêcher l'empoisonnement de l'électrocatalyseur par des impuretés dans le flux de combustible vers l'anode.
Ball Sarah
Thompsett David
Johnson Matthey Public Limited Company
Ridout & Maybee Llp
LandOfFree
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