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Pt LIII-edge XANES and EXAFS studies on γ-Al2O3 supported Pt catalysts

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Abstract

Pt LIII-edge XANES and EXAFS were employed to investigate the nature of Pt/γ-Al2O3, Pt−Sn/γ-Al2O3 and Pt−Fe/γ-Al2O3 catalysts. The results indicated that Pt species on these catalysts were all in the oxidized states before reduction, and in the metallic states after reduction. The dispersity of the Pt species on the catalysts was very high after reduction. The electronic properties of the highly dispersed Pt species were different from that of the bulk Pt in large crystallites. An interaction between Pt and the metal-oxide modified γ-Al2O3 support is proposed. The interaction improved the dispersity of the Pt species on the catalysts and is thought to be the reason for the enhanced activity and selectivity for dehydrogenation reactions over these catalysts.

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References

  1. Yasuhiro Iwasawa:X-ray Absorption Fine Structure for Catalysts and Surfaces, World Scientific Series on Synchrotron Radiation Techniques and Applications, Vol. 2. Singapore, 1996.

  2. G. Meitzner, G.H. Via, F.W. Lytle, J.H. Sinfelt:J. Phys. Chem.,92, 2925 (1988).

    Article  CAS  Google Scholar 

  3. Jifei Jia, Zhusheng Xu, Tao Zhang, Liwu Lin:Chinese J. Catal.,17, 306 (1996).

    CAS  Google Scholar 

  4. Yuan Kou, Hongli Wang, Jianzhong Niu, Weijie Li:J. Phys. Chem.,100, 2330 (1996).

    Article  CAS  Google Scholar 

  5. J.H. Sinfelt, G.D. Meitzner:Acc. Chem. Res. 26, 1 (1993).

    Article  CAS  Google Scholar 

  6. Liwu Lin: Huaxuetongbao (in Chinese),9, 14 (1994).

    Google Scholar 

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Authors and Affiliations

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, P.O.Box 110, 116023, Dalian, P. R. China

    Jifei Jia, Yuan Kou, Liwu Lin, Zhusheng Xu, Tao Zhang & Dongbai Liang

  2. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 730000, Lanzhou, P.R. China

    Jianzhong Niu

Authors
  1. Jifei Jia
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  2. Yuan Kou
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  3. Liwu Lin
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  4. Zhusheng Xu
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  5. Tao Zhang
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  6. Jianzhong Niu
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  7. Dongbai Liang
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Jia, J., Kou, Y., Lin, L. et al. Pt LIII-edge XANES and EXAFS studies on γ-Al2O3 supported Pt catalysts. React Kinet Catal Lett 63, 391–396 (1998). https://doi.org/10.1007/BF02475417

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  • DOI: https://doi.org/10.1007/BF02475417

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