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Volume 39 Issue 1
Jan.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  (1): 100-104.
Liu Yanjun, Jin Tao, Xiang Min, et al. Preparation of borate-based metal compounds and their electrocatalytic activities[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 100-104. (in Chinese)
Citation: Liu Yanjun, Jin Tao, Xiang Min, et al. Preparation of borate-based metal compounds and their electrocatalytic activities[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 100-104. (in Chinese)
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Preparation of borate-based metal compounds and their electrocatalytic activities

  • School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 14 Oct 2011
  • Publish Date: 31 Jan 2013
    Abstract
  • Borate-based metal compounds thin film such as cobalt-borate(CoBi), nickel-borate(NiBi), manganese-borate(MnBi), rhodium-borate(RhBi) and palladium-borate(PdBi) were prepared on the surface of indium tin oxide(ITO) through electrochemical method at room temperature in alkaline medium. These compounds were amorphous films by morphology and structure characterization. Comparing their catalytic activities in electrocatalytical water splitting for oxygen generation, CoBi, NiBi and RhBi show higher activity than MnBi and PdBi. Further research indicates that borate is beficial for the preparation of borate-based metal compounds, and as a proton acceptor, the concentration of HBO32- rised gradually as pH increases from 7 to 11, HBO32- can accept the proton produced from oxygen evolving process, improving the electrocatalytical water splitting. In addition, the as-synthesized catalysts could be self-repaired and recycled.

     

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