J. Mater. Sci. Technol. ›› 2015, Vol. 31 ›› Issue (9): 888-894.DOI: 10.1016/j.jmst.2014.09.023

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  • 收稿日期:2014-07-17 出版日期:2015-09-10

Synthesis and Characterization of Sphere-like Pt Nanoparticles Supported on DWCNT/WO3 Nanorods with Electrocatalytic Activity

Yanhong Yin1, 2, Chun′an Ma1, *, Ziping Wu2, Man Zhao2, Litao Chen1, Youqun Chu1   

  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, Zhejiang University of Technology, Hangzhou 310032, China; 2 Engineering Research Center of High-efficiency Development and Application Technology of Tungsten Resources (Ministry of Education), School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China;
  • Received:2014-07-17 Online:2015-09-10
  • Contact: Corresponding author. Prof., Ph.D.; Tel./Fax: +86 571 88320360. E-mail address: science@zjut.edu.cn (C. Ma).
  • Supported by:
    This study was financially supported by the Science and Technology Major Project in International Cooperation of Zhejiang Province (No. 2008C14040), the Key Project of Natural Science Foundation of Zhejiang Province (No. Z4100790), the International Science and Technology Cooperation Program of China (No. 2010DFB63680), the Department of Educational, Science & Technology, and Human Resources & Social Security of Jiangxi Province (Nos. GJJ12366, 20122BAB216013, 20121BBE50027, [2012]195) and the National Natural Science Foundation of China (Nos. 51202095 and 51264010).

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Abstract: Tungsten oxide (WO3) nanorods, which were used to load platinum (Pt) nanoparticles, were investigated. H2WO4 nanorods with diameters from 10 to 50 nm were obtained when tungsten precursor was added into homogenous double-walled carbon nanotubes (DWCNT) and ethylene glycol (EG) solution. Nanosized rod-like WO3 were achieved after calcination of the DWCNT/H2WO4 composite. Sphere-like Pt nanoparticles were loaded on the surface of the nanorods by EG in-situ reduction. Pt particles were isolated by DWCNT/WO3 nanorods and secondary accumulation could be prevented when Pt particles appeared in the DWCNT/WO3 nanorod/EG dispersion solution. Therefore, Pt nanoparticles with mean diameters of 2-6 nm could be obtained. Pt-deposited on DWCNT/WO3 nanorods exhibited high electrochemical activity, which could facilitate the low-cost mass production of Pt catalyst.

Key words: Platinum, Tungsten oxide, Double-walled carbon nanotubes, Nanorods, Electrocatalysis