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Citation: 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 Physico-Chimica Sinica, ;2006, 22(02): 141-145. doi: 10.3866/PKU.WHXB20060203 shu

The Effect of NdOx as Co-catalyst for the Electro-oxidation of Methanol on PtRu/C

1.
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China

Received Date: 18 June 2005
Available Online: 22 January 2006

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.
- Direct methanol fuel cell;PtRu-NdOx /C catalyst;Deposition-reduction method;Electrochemical catalysis
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