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Acta Physico-Chimica Sinica  2010, Vol. 26 Issue (05): 1311-1316    DOI: 10.3866/PKU.WHXB20100521
Effect of Carbon Modification on Electrocatalytic Performance of Carbon Supported Pd Catalysts
DING Liang-Xin, WANG Shi-Rui, ZHENG Xiao-Long, CHEN Yu, LU Tian-Hong, CAO Dian-Xue, TANG Ya-Wen
School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, P. R. China; College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
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The effect of carbon modification on electrocatalytic performance of carbon supported Pd catalysts was investigated. Fourier transform infrared (FT-IR) spectrometer, X-ray photoelectron spectroscopy (XPS) and Boehm titration measurements demonstrate that the contents of O-containing groups and N-containing groups on the activated carbon surface increase via HNO3 and NH4OHtreatment. Transmission electron microscope (TEM) and electrochemical measurements indicate that the treatment of activated carbon with HNO3 can decrease the size of the Pd particles. Thus, the electrocatalytic activity and stability of the carbon supported Pd catalyst for the oxidation of formic acid are enhanced. The treatment of activated carbon with NH4OH has almost no effect on the Pd particles size, however, the content of Pd0 in the Pd/C catalyst enhances, which leads to the further increase in the electrocatalytic performance the Pd/C catalyst.

Key wordsActivated carbon      Carbon supported Pd catalyst      Nitric acid treatment      Ammonia treatment      Formic acid oxidation     
Received: 09 October 2009      Published: 01 April 2010
MSC2000:  O643  
Corresponding Authors: CHEN Yu, TANG Ya-Wen     E-mail:;
Cite this article:

DING Liang-Xin, WANG Shi-Rui, ZHENG Xiao-Long, CHEN Yu, LU Tian-Hong, CAO Dian-Xue, TANG Ya-Wen. Effect of Carbon Modification on Electrocatalytic Performance of Carbon Supported Pd Catalysts. Acta Physico-Chimica Sinica, 2010, 26(05): 1311-1316.

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