Electrodeposited Platinum Nanoparticles on Mesoporous Carbon CMK-3 and Its Electrocatalytic Performance for Methanol Oxidation

doi:10.3724/SP.J.1095.2010.90771

Chinese Journal of Applied Chemistry ›› 2010, Vol. 27 ›› Issue (09): 1065-1070.DOI: 10.3724/SP.J.1095.2010.90771

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Electrodeposited Platinum Nanoparticles on Mesoporous Carbon CMK-3 and Its Electrocatalytic Performance for Methanol Oxidation

LI Heng¹, KONG Ling-Bin^1,2*, ZHANG Jing¹, WANG Ru-Tao¹, LUO Yong-Chun², KANG Long²

(1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,
Lanzhou University of Technology,Lanzhou 730050;
2.School of Materials Science and Engineering,Lanzhou University of Technology,Lanzhou 730050)

Received:2009-11-22 Revised:2009-12-25 Published:2010-09-10 Online:2010-09-10

Abstract

Abstract:

A new approach to directly electrodeposit platinum nanoparticles onto the mesoporous carbon CMK-3 via cyclic potential scanning technique was used to obtain Pt/CMK-3(Ⅰ) electrode. TEM images show that Pt nanoparticles with an average particle size of about 5 nm have been attached on the outer surface of the CMK-3. The electrocatalytic activity of Pt/CMK-3 for methanol oxidation was studied. When the platinum loading was 20% in the catalysts, the H2PtCl6 exhibited the maximum efficiency; current density was 382 A/g in 1 mol/L CH3OH+0.5 mol/L H2SO4 solution. The Pt/CMK-3 catalyst presented here possessed higher electrocatalytic activity than Pt/XC-72 and Pt/CMK-3 prepared by conventional electrodepositing method.

Key words: mesoporous carbon CMK-3, electrodeposited, platinum, fuel cell

CLC Number:

O643.3

LI Heng1, KONG Ling-Bin1,2*, ZHANG Jing1, WANG Ru-Tao1, LUO Yong-Chun2, KANG Long2. Electrodeposited Platinum Nanoparticles on Mesoporous Carbon CMK-3 and Its Electrocatalytic Performance for Methanol Oxidation[J]. Chinese Journal of Applied Chemistry, 2010, 27(09): 1065-1070.

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Electrodeposited Platinum Nanoparticles on Mesoporous Carbon CMK-3 and Its Electrocatalytic Performance for Methanol Oxidation

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