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Acta Phys. -Chim. Sin.  2006, Vol. 22 Issue (02): 141-145    DOI: 10.3866/PKU.WHXB20060203
Article     
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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Abstract  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.

Key wordsDirect methanol fuel cell      PtRu-NdOx /C catalyst      Deposition-reduction method      Electrochemical catalysis     
Received: 18 June 2005      Published: 22 January 2006
Corresponding Authors: WANG Xin-dong     E-mail: 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. Acta Phys. -Chim. Sin., 2006, 22(02): 141-145.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB20060203     OR     http://www.whxb.pku.edu.cn/Y2006/V22/I02/141

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