Citation: ZHAO Yan-Chun, LAN Huang-Xian, DENG Bin-Bin, YANG Xiu-Lin, WANG Feng-Yang, . Electrocatalytic Oxidation of Methanol with Poly Functionalized Multiwalled Carbon Nanotubes Supported Pt Catalysts[J]. Acta Physico-Chimica Sinica, ;2010, 26(08): 2255-2260. doi: 10.3866/PKU.WHXB20100829 shu

Electrocatalytic Oxidation of Methanol with Poly Functionalized Multiwalled Carbon Nanotubes Supported Pt Catalysts

1.
1. Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China, College of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin 541004, Guangxi Province, P. R. China;
2. Guangxi Coal Scientifical Institute, Nangni 523003, Guangxi Province, P. R. China

Corresponding author: ,
Received Date: 18 December 2009
Available Online: 28 June 2010
Fund Project: 广西青年科学基金(0728043) (0728043)广西教育厅科研项目(桂教科研[2006]26号) (桂教科研[2006]26号)广西壮族自治区研究生教育创新计划(2009106020703M49)资助项目 (2009106020703M49)

A novel process to prepare well-dispersed Pt nanoparticles on poly(N-acetylaniline) functionalized multiwalled carbon nanotubes (Pt/PAANI-MWCNTs) using chemical in situ polymerization and reduction is reported. Scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), UV-Vis absorption spectroscopy as well as Raman spectroscopy were used to characterize the catalyst. We found that PAANI can easily immobilize onto the MWCNTs because of a strong interaction with the basal plane of graphite via π-stacking. The Pt particles supported on the PAANI-MWCNTs are uniformly dispersed with a narrow particle size distribution. The electrocatalytic activity of the Pt/PAANI-MWCNTs towards the oxidation of methanol was investigated using cyclic voltammetry and chronoamperometry. The results indicate that the Pt/PAANI-MWCNTs catalysts exhibit higher electrocatalytic activity, better anti-poisoning ability, and od stability during methanol oxidation in comparison to the Pt/MWCNTs for acid oxidation (Pt/AO-MWCNTs).
- Direct methanol fuel cell,
- Poly(N-acetylaniline),
- Multiwalled carbon nanotubes,
- Pt catalyst,
- Electrocatalytic performance
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