FePd-RGO composites through the growth of uniformly dispersed iron-palladium bimetallic nanoparticles (NPs) on reduced graphene oxide (RGO) nanosheets were prepared by a two-step method. The firstly formed Fe is used as the seed for the subsequent Pd growth. The formation of Fe NPs on RGO in the first step is performed by an in-situ reduction reaction with the reducer ethylene glycol under oil bath at 180 ℃. NPs in the as-prepared FePd-RGO have an average particle size of 6.5 nm, and Pd is added to one side of Fe which leads to the formation of Fe-Pd bimetallic interfaces. As compared with the commercial Pd black at the same loading, the composites have higher electro-catalytic activity, better electrochemical stability and higher resistance to CO poisoning for formic acid electro-oxidation. Figure 1 (a) TEM image of Fe-RGO; (b) TEM image of FePd-RGO with the corresponding local magnified image, and (c) HRTEM image of (b). Insets (a) and (c) are the corresponding SAED patterns, respectively. Preparation of FePd-RGO Bimetallic Composites with High Catalytic Activity Chin.

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