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Citation: LI Heng, KONG Ling-Bin, ZHANG Jing, WANG Ru-Tao, LUO Yong-Chun, KANG Long. Electrodeposited Platinum Nanoparticles on Mesoporous Carbon CMK-3 and Its Electrocatalytic Performance for Methanol Oxidation[J]. Chinese Journal of Applied Chemistry, ;2010, 27(9): 1065-1070. doi: 10.3724/SP.J.1095.2010.90771 shu

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

a. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050;
b. School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050

Received Date: 22 November 2009
Revised Date: 4 January 2010

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.
- mesoporous carbon CMK-3,
- electrodeposited,
- platinum,
- fuel cell
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