Abstract
Composite catalyst (RuO2ns-Pt/C) composed of commercial carbon supported Pt (Pt/C) and various size RuO2 nanosheets (RuO2ns) were synthesized.The improvement in ORR activity and durability of the different catalysts has been evaluated and is discussed as a function of the size of RuO2ns. The RuO2ns size was found to greatly influence the catalytic properties with smaller RuO2ns giving better performance than larger ones. Composite catalyst with small sized RuO2ns exhibit initial activity 2 times higher than Pt/C catalyst and improved activity retention rate.
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