Preparation of High Alloying Pt-Ru/CMK-3 Catalysts at Room Temperature and Electrocatalytic Oxidation of Methanol

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Preparation of High Alloying Pt-Ru/CMK-3 Catalysts at Room Temperature and Electrocatalytic Oxidation of Methanol

WU Wei¹, CAO Jie-Ming¹, CHEN Yu², LIU Jin-Song¹, CAO Yu-Lin¹, FANG Bao-Qing¹, HE Jian-Ping¹, TANG Ya-Wen², YANG Chun², LU Tian-Hong²

1. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Department of Chemistry, Nanjing Normal University, Nanjing 210097, China

Received:2006-03-24 Revised:1900-01-01 Online:2006-12-10 Published:2006-12-10
Contact: CAO Jie-Ming

Abstract

Abstract: High-alloying Pt-Ru solid solution was prepared by complexing reaction and uniformly dispersed on rigid ordered mesoporous carbon CMK-3 to form the two-element composite catalysts. XRD patterns show that Pt atoms with fcc structure were almost replaced by Ru atoms with hcp structure. XRD and TEM measurements indicate that the average diameter is 2.7 nm with a uniform size. The electrocatalytic activity of Pt-Ru/CMK-3 for the ethanol oxidation was studied and compared with that of Pt-Ru/XC-72 of E-TEK congeneric catalyst. The results show that the catalyst of Pt-Ru/CMK-3 possesses a bigger electrocatalytic activity area, the electrocatalytic activity for the oxidation of methanol and the ability of resisting CO poison exceed the same kind catalysts because of the appropriate extent of alloying and average particle diameter.

Key words: DMFC, Pt-Ru/CMK-3, Complexing reaction, Mesoporous materials, Electrocatalytic oxidation of methanol

CLC Number:

O646

TrendMD:

WU Wei¹, CAO Jie-Ming¹, CHEN Yu², LIU Jin-Song¹, CAO Yu-Lin¹, FANG Bao-Qing¹, HE Jian-Ping¹, TANG Ya-Wen², YANG Chun², LU Tian-Hong²
. Preparation of High Alloying Pt-Ru/CMK-3 Catalysts at Room Temperature and Electrocatalytic Oxidation of Methanol[J]. Chem. J. Chinese Universities, doi: .

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Preparation of High Alloying Pt-Ru/CMK-3 Catalysts at Room Temperature and Electrocatalytic Oxidation of Methanol

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