... stability and catalyticactivity in methanol electro-oxidation, so that it is one kind of high-performance catalyst, and has great potential inapplications such as methanol fuel cells in near future.IntroductionGraphene, ... NRs/graphenehybrid composites was carried out by zeta potential test,SEM, and TEM. The zeta potential data were shown inTable 1. GO had a zeta potential of -64.2 mV, which isattributed t o a l ... onset potentials (0.216 V). Otherwise, in backwardsweep, sample b had frontier onset potentials (up to 124mV) than sample a (without graphene). As mentionedabove, the oxidation current of methanol...