Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (6): 1213.

• Articles • Previous Articles     Next Articles

Fabrication and Catalytic Activity of Nickel Core-shell Structure

HAO Wei-Chang*, ZHAI Ting-Ting, WANG Xu, WANG Tian-Min   

  1. Center of Materials Physics and Chemistry, Beihang University, Beijing 100083, China
  • Received:2009-11-16 Online:2010-06-10 Published:2010-06-10
  • Contact: HAO Wei-Chang. E-mail: whao@buaa.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 50732004)资助.

Abstract:

Nickel has received wide application in industry catalyst field. PS/Ni core-shell structure and Ni nanoparticles were fabricated by soft chemical methods, and SEM, XRD were used to characterize the morphology and structure of samples. The catalytic performances of the PS/Ni and Ni nanoparticles were evaluated using methylene blue as a model reagent. This experiment realized degradation of dye and hydrogen production via NaBH4 hydrolysis in one step. The results show that the core-shell structure promotes the catalytic activity of nickel. The degradation efficiency of dye and hydrogen production velocity using PS/Ni catalyst is 1.42 and 4.76 times higher than that using Ni nanoparticle catalyst, respectively. The advantage of core-shell structure in catalysis is proved.

Key words: Core-shell structure; Nickel catalyst; Dye decolorization; Hydrogen production

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