Patent ID: 7993797
Filing Date: 2011-08-09
Classification: C07C,H01M,Y02E

Abstract:
1. A catalyst material for a catalyzed electrode adjacent to the surface of a proton conducting membrane for an electrochemical cell, the catalyst material comprising electrically conductive carbon support particles carrying smaller catalyst particles, and the carbon support particles having chemically attached fluorinated, linear carbon chains with at least one oxygen atom in each linear chain and with terminal mobile-proton containing groups, the fluorinated chains being connected through an aromatic moiety to the surfaces of the support particles, the fluorinated carbon chains connected to the support particles being characterized by the formula: Ar=an aryl ring, a=an even number from 2 to 50, b=an even number form 2 to 50, and X=any one or more of SO 3 H, CO 2 H, P(O)(OH) 2 , P(O)(OH)(CF 3 ), and SO 2 NHSO 2 CF 3 .