H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/90 (2006.01) C25B 9/10 (2006.01) C25B 11/04 (2006.01) H01M 4/86 (2006.01) H01M 8/10 (2006.01) H01M 4/92 (2006.01)
Patent
CA 2472789
An electrocatalyst ink comprising one or more electrocatalyst metals and one or more proton-conducting polymers, characterised in that the electrocatalyst ink further comprises particulate graphite which is present at a loading of 1 to 40 weight % with respect to the weight of the electrocatalyst, and a process for the preparation of said ink is disclosed. The use of the ink in a gas diffusion electrode, particularly for use in PEM fuel cells is also disclosed.
La présente invention concerne une encre électrocatalytique comportant un ou des métaux électrocatalytiques et un ou des polymères conducteurs de protons, caractérisée en ce que l'encre électrocatalytique comporte en outre un graphite particulaire qui est présent en une charge de 1 à 40 % en poids par rapport au poids de l'électrocatalyseur. L'invention concerne également un procédé permettant la préparation de ladite encre. L'invention concerne enfin l'utilisation de cette encre, notamment dans des piles à combustible à membrane d'échange protonique.
Buche Silvain
Gascoyne John Malcolm
Hogarth Karen Leanne
Ralph Thomas Robertson
Johnson Matthey Public Limited Company
Ridout & Maybee Llp
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