Carbon supported catalyst having reduced water retention

Details Carbon supported catalyst having reduced water retention Carbon supported catalyst having reduced water retention

B - Operations, Transporting

01

J

B01J 32/00 (2006.01) B01J 23/42 (2006.01) B01J 35/10 (2006.01) H01M 4/86 (2006.01) H01M 4/92 (2006.01) H01M 4/96 (2006.01)

Patent

CA 2581472

Compositions are disclosed for carbon supported catalysts with high metal loadings, high electrochemically active surface area, and good water management properties. In one aspect, the invention is directed to a carbon supported catalyst comprising a carbonaceous substrate and a dispersed metal, wherein the carbonaceous substrate has an electron microscopy surface area to nitrogen surface area ration of at least 0.5 and a nitrogen surface area of at least 100 m2/g.

L'invention concerne des compositions destinées à des catalyseurs supportés par du carbone comprenant des charges métalliques élevées, une zone de surface électrochimiquement très active et de bonnes propriétés de gestion d'eau. Dans un aspect, l'invention concerne un catalyseur supporté par du carbone comprenant un substrat carboné et un métal dispersé, ledit substrat carboné présentant un rapport entre une surface de microscopie électronique et une surface d'azote d'au moins 0,5 et une surface d'azote d'au moins 100 m2/g.

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