Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (9): 1819.

• Articles • Previous Articles     Next Articles

Effect of Heat Treatment Temperature on the Catalytic Performances of PtRu/C Catalysts for Methanol Electro-Oxidation

WANG Xiao-Gang1,2, SU Yi1, LIU Chang-Peng1, LIAO Jian-Hui1, XING Wei1*, LU Tian-Hong1   

  1. 1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
  • Received:2008-10-13 Online:2009-09-10 Published:2009-09-10
  • Contact: XING Wei. E-mail: xingwei@ciac.jl.cn
  • Supported by:

    国家自然科学基金(批准号: 20433060, 20703043)和国家“八六三”计划(批准号: 2007AA05Z159, 2007AA05Z143, 2007AA03Z218)资助.

Abstract:

Non-ionic surfactant Triton X-100 was used as a stabilizer to prepare PtRu/C catalysts for methanol oxidation reaction(MOR). The cyclic voltammogram was used to investigate the catalytic activity for MOR of different PtRu/C catalysts. TG-DTA, EDX, XRD, XPS and TEM were used to characterize the composition, structure and morphology of the as-prepared PtRu/C catalysts. It is found that the heat treatment plays a crucial role in the particles size, particles distribution of the PtRu/C catalysts and the oxidation state of platinum. The results show that 350 ℃ is an optimum heat treatment temperature. The as-synthesized catalyst heat-treated at this temperature exhibits the best catalytic performance for MOR.

Key words: Surfactant; Stabilizer; PtRu/C catalyst; Methanol electro-oxidation reaction; Heat treatment

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