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ISSN 1000-6818CN 11-1892/O6CODEN WHXUEU
Acta Phys Chim Sin >> 2006,Vol.22>> Issue(02)>> 141-145     doi: 10.3866/PKU.WHXB20060203         中文摘要
The Effect of NdOx as Co-catalyst for the Electro-oxidation of Methanol on PtRu/C
CHEN Ling; WANG Xin-dong; GUO Min
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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The PtRu-NdOx /C catalysts have been prepared by deposition-reduction method. EDX、XRD, and TEM measurements have been used to characterize the composition, particle size, and crystallinity of the catalysts. The catalyst materials consist of Pt-Ru alloy particles and varying amounts of Nd oxide. The average particle size and the lattice parameter of the catalysts are about 2 nm and 0.3896 nm, respectively, which indicates that Nd oxide in PtRu-NdOx /C has no effects on the crystal structure of the Pt-Ru alloy particles. The electrocatalytic activities of the PtRu-NdOx /C catalysts and PtRu/C catalysts have been investigated by cyclic voltammetry and chronoamperometric measurements. Nd oxide can improve the degree of dispersion of the noble metals in the catalysts and as co-catalyst lead to an improvement of the catalytic activity towards methanol oxidation.

Keywords: Direct methanol fuel cell   PtRu-NdOx /C catalyst   Deposition-reduction method   Electrochemical catalysis  
Received: 2005-06-18 Accepted: 2005-09-27 Publication Date (Web): 2006-01-22
Corresponding Authors: WANG Xin-dong Email: echem@ustb.edu.cn


Cite this article: CHEN Ling; WANG Xin-dong; GUO Min. The Effect of NdOx as Co-catalyst for the Electro-oxidation of Methanol on PtRu/C[J]. Acta Phys. -Chim. Sin., 2006,22 (02): 141-145.    doi: 10.3866/PKU.WHXB20060203
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