Effect of Platinum Loading on Graphene Nano Sheets at Cathode
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The effect of Pt loading on graphene nanosheets (GNS) at electrode catalyst fuel cell was carried out. The purpose of this research is to know the effect of Pt loading on GNS and support material for catalytic activity of Pt/GNS. The results show 20 wt % Pt/GNS is highest catalytic activity among the others and the catalytic activity of Pt on GNS is higher than that of Pt on carbon black (CB) commercial catalyst. A core level shift of Pt 4f in XPS indicates that Pt is chemically interacted with GNS. It has been ascribed to the difference in the interface interaction between Pt and graphene via different strength of the δ–d hybridization.