OXIDATION RESISTANT ELECTRODE FOR FUEL CELL

摘要

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, TiO₂ 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.