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Acta Physico-Chimica Sinica  2010, Vol. 26 Issue (06): 1570-1574    DOI: 10.3866/PKU.WHXB20100620
CATALYSIS AND SURFACE STRUCTURE     
High Activity of Pd/Graphene Catalysts for Ethanol Electrocatalytic Oxidation
WEN Zhu-Liang, YANG Su-Dong, SONG Qi-Jun, HAO Liang, ZHANG Xiao-Gang
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
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Abstract  

Graphite oxide (GO) 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.



Key wordsGraphene      Palladium      Ethanol electrocatalytic oxidation      Catalytic activity     
Received: 16 December 2009      Published: 27 April 2010
MSC2000:  O643  
Corresponding Authors: SONG Qi-Jun, ZHANG Xiao-Gang     E-mail: qsong@jiangnan.edu.cn; azhangxg@163.com
Cite this article:

WEN Zhu-Liang, YANG Su-Dong, SONG Qi-Jun, HAO Liang, ZHANG Xiao-Gang. High Activity of Pd/Graphene Catalysts for Ethanol Electrocatalytic Oxidation. Acta Physico-Chimica Sinica, 2010, 26(06): 1570-1574.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20100620     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2010/V26/I06/1570

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