An oxygen reducing electrode for a fuel cell comprises carbon particles as support for catalyst particles. The carbon particles are coated with smaller particles of a metal oxide and/or metal phosphate (for example, TiO<SUB>2</SUB> particles) to impede destructive oxidation (corrosion) of the carbon particles while permitting suitable electrical conductivity between the carbon particles. The catalyst is carried on the smaller particle-coated carbon particles. Titanium dioxide particles can be dispersed on carbon particles suspended in a liquid medium by ultrasonic decomposition of a suitable titanium precursor compound.
申请公布号
WO2006091443(A3)
申请公布日期
2007.09.07
申请号
WO2006US05262
申请日期
2006.02.14
申请人
GENERAL MOTORS GLOBAL TECHNOLOGY OPERATIONS, INC.
发明人
MANCE, ANDREW, M.;CAI, MEI;CARRIQUIRY, CECILIA;RUTHKOSKY, MARTIN, S.