Improved Pt alloy catalysts for fuel cells

摘要: Abstract Supported PtCoCr alloy catalysts on graphitized carbon black showing increased activity and stability as electrode for oxygen-reduction reaction in phosphoric acid fuel cells have been developed by co-precipitation of the corresponding metal nitrates. XRD investigations showed that a tetragonal ordered structure was formed upon thermal treatment. The formation this required temperatures above 873 K. Although two-step other sequential methods are known preparation such catalysts, newly method described here will led more efficiently to having small particle size, platinum cobalt chromium alloy.