Pt/C催化剂对乙醇电氧化的粒径效应

doi:10.3866/PKU.WHXB20080915

Acta Phys. -Chim. Sin. ›› 2008, Vol. 24 ›› Issue (09): 1615-1619.doi: 10.3866/PKU.WHXB20080915

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Electrocatalytic Oxidation of Ethanol on Pt/C Catalysts with Different Pt Particle Sizes

TANG Ya-Wen; MA Guo-Xian; ZHOU Yi-Ming; BAO Jian-Chun; LU Lu-De; LU Tian-Hong

Laboratory of Materials Chemistry, Nanjing University of Science and Technology, Nanjing 210094, P. R. China; College of Chemistry and Environment Science, Nanjing Normal University, Nanjing 210097, P. R. China; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China

Received:2008-02-13 Revised:2008-04-30 Published:2008-09-10
Contact: LU Tian-Hong E-mail:tianhonglu@263.net

Abstract

Abstract: Pt/C catalysts with different Pt particle sizes were prepared with the organic sol method. Pt particles in the Pt/C catalyst had high dispersity and excellent homogenicity. The electrochemical study indicated that there was an obvious size effect of Pt particles on the electrocatalytic oxidation of ethanol. The Pt/C catalyst with 3.2 nm average size of the Pt particles exhibited the optimal electrocatalytic activity for the ethanol oxidation. The study of X-ray photoelectron spectroscopy (XPS) showed that the size effect of Pt/Ccatalysts on the electrocatalytic oxidation of ethanol was closely related to the Pt0 content and the specific surface area of the Pt particles.

Key words: Pt, Catalyst, Ethanol oxidation, Particle size effect

TANG Ya-Wen; MA Guo-Xian; ZHOU Yi-Ming; BAO Jian-Chun; LU Lu-De; LU Tian-Hong. Electrocatalytic Oxidation of Ethanol on Pt/C Catalysts with Different Pt Particle Sizes[J]. Acta Phys. -Chim. Sin. 2008, 24(09), 1615-1619. doi: 10.3866/PKU.WHXB20080915

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Electrocatalytic Oxidation of Ethanol on Pt/C Catalysts with Different Pt Particle Sizes

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