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Citation: 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 Physico-Chimica Sinica, ;2008, 24(09): 1615-1619. doi: 10.3866/PKU.WHXB20080915 shu

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

1.
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 Date: 13 February 2008
Available Online: 22 July 2008

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.
- Pt; Catalyst; Ethanol oxidation; Particle size effect
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