Citation: ZHOU Yang, CHU You-Qun, LIU Wei-Ming, MA Chun-An. Nano-WO₃ Modified Carbon Nanotube Supported Pt and Their Electrocatalytic Activity for Methanol Electro-Oxidation[J]. Acta Physico-Chimica Sinica, ;2013, 29(02): 287-292. doi: 10.3866/PKU.WHXB201211261 shu

Nano-WO₃ Modified Carbon Nanotube Supported Pt and Their Electrocatalytic Activity for Methanol Electro-Oxidation

1.
1 State Key Laboratory Breeding Base for Green Chemistry Synthesis Technology, International Science＆Technology Cooperation Base of Energy Materials and Application, College Of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, P. R. China;
2 Jiangxi University of Science and Technology, Metallurgical and Chemical Engineering Institute. Ganzhou 341000, Jiangxi Province, P. R. China

Received Date: 2 August 2012
Available Online: 26 November 2012
Fund Project: 科技部国际科技合作重大专项(2010DFB63680) (2010DFB63680) 浙江省教育厅科研项目(Y201225711) 和浙江省自然科学基金重点项目(Z4100790)资助 (Y201225711) 和浙江省自然科学基金重点项目(Z4100790)

Nano-WO₃-modified carbon nanotube supported Pt nanoparticles (Pt-WO₃/CNT) with uniform dimensions were prepared by adsorption and decomposition of ammonium meta-tungstate (AMT) on the surface of CNTs pretreated with HNO₃, and H₂PtCl₆ as the Pt precursor. The samples were characterized by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). The Pt nanoparticles had a face-centered cubic crystal structure, and were well dispersed on the external walls and ports of the WO₃/ CNTs. The electrocatalytic activity of the samples towards the oxidation of methanol was investigated using cyclic voltammetry and chronoamperometry. The results indicated that the Pt-WO₃/CNT catalysts exhibited higher electrocatalytic activity, better anti-poisoning ability, and od stability during methanol oxidation compared with Pt/CNTs used for acid oxidation treatments.
- Direct methanol fuel cell,
- Carbon nanotube,
- Tungsten trioxide,
- Electro-catalysis
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Nano-WO3 Modified Carbon Nanotube Supported Pt and Their Electrocatalytic Activity for Methanol Electro-Oxidation

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通讯作者: 陈斌, bchen63@163.com

Nano-WO₃ Modified Carbon Nanotube Supported Pt and Their Electrocatalytic Activity for Methanol Electro-Oxidation