Figure 5From: Preparation of Pt Ag alloy nanoisland/graphene hybrid composites and its high stability and catalytic activity in methanol electro-oxidation Cyclic voltammetric curves for the electrooxidation of methanol (sweep rate: 50 mV s -1 , 0.5 mol L -1 H 2 SO 4 , 2 mol L -1 CH 3 OH, 298 K). (a) the first cycle of Au@Pt0.57Ag0.43 NRs; (b) the 25th cycle of Au@Pt0.57Ag0.43 NRs; (c) the first cycle of graphene/Au@Pt0.57Ag0.43 NRs.Back to article page