The Role of Electrocatalysis in Phosphoric Acid Fuel-Cells PAFCs

THE ROLE OF ELECTROCATALYSIS IN PHOSPHORIC ACID FUEL CELLS (PAFCS) 

For fuel-cell technology development, it has been important to understand the characteristics and operation of highly dispersed platinum and platinum alloy electrocatalysts. A series of papers on platinum crystallite size determinations in acid environments for oxygen reduction and hydrogen oxidation was published together by Bert, Stonehart, Kinoshita and co-workers.5 The conclusion from these studies was that the specific activity for oxygen reduction on the platinum surface was independent of the size of the platinum crystallite and that there were no crystallite size effects. 

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