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Citation: WEN Zhu-Liang, YANG Su-Dong, SONG Qi-Jun, HAO Liang, ZHANG Xiao-Gang. High Activity of Pd/Graphene Catalysts for Ethanol Electrocatalytic Oxidation[J]. Acta Physico-Chimica Sinica, ;2010, 26(06): 1570-1574. doi: 10.3866/PKU.WHXB20100620 shu

High Activity of Pd/Graphene Catalysts for Ethanol Electrocatalytic Oxidation

1.
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P. R. China; College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

Received Date: 16 December 2009
Available Online: 27 April 2010

Graphite oxide ( ) was prepared from graphite powder by Hummers'liquid oxidation method. The graphene nanosheets supporting Pd catalysts were prepared by a one-step chemical reduction method. X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements were used to characterize the particle size and crystallinity of the catalysts. The Pd nanoparticles were well dispersed on the surface of the graphene nanosheets with particle sizes of 3-5 nm. The electrocatalytic oxidation of ethanol was studied by electrochemically active surface area (EASA), cyclic voltammetry(CV), chronoamperometry(CA), and chronopotentiometry(CP) measurements. It was found that the Pd/graphene composites had better catalytic activity than the Pd/Vulcan XC-72 catalysts toward ethanol oxidation in alkaline media.
- Graphene,
- Palladium,
- Ethanol electrocatalytic oxidation,
- Catalytic activity
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