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Xps Study Of Interaction Of Titanium Species With Different Internal Electron Donors Onz–Ncatalysts

Author

Listed:
  • XI ZHAO

    (School of Material Science and Engineering, Beijing University of Chemistry and Technology, Beijing, 100029, China;
    Beijing Research Institute of Chemical Industry, Beijng, 100013, China)

  • YING ZHANG

    (Beijing Research Institute of Chemical Industry, Beijng, 100013, China)

  • YANG SONG

    (Beijing Research Institute of Chemical Industry, Beijng, 100013, China)

  • GANG WEI

    (School of Material Science and Engineering, Beijing University of Chemistry and Technology, Beijing, 100029, China)

Abstract

TiCl4/MgCl2,TiCl4/MgCl2/donor catalysts andTiCl4/donor complexes were prepared in this experiment; the donors are EB, DNBP, DBPG, DBW, PPDE, and BMMF respectively. Chemical states ofTion the surface ofMgCl2-supportedZ–Ncatalysts were analyzed with X-ray photoelectron spectroscopy (XPS). The interaction among components of a catalyst is characterized, and the function of internal donor in the catalyst was demonstrated according to the change of binding energy ofTi2p3/2. We may conclude from the experiment that the kind of internal donors influence the electron density around titanium, and further the electron density around active titanium species effect catalyst activity to some extent. It was also noted that the interaction between internal donors and titanium is weakened remarkably by moisture and oxygen in ambient.

Suggested Citation

  • Xi Zhao & Ying Zhang & Yang Song & Gang Wei, 2007. "Xps Study Of Interaction Of Titanium Species With Different Internal Electron Donors Onz–Ncatalysts," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 14(05), pages 951-955.
    • Handle: RePEc:wsi:srlxxx:v:14:y:2007:i:05:n:s0218625x07010482
    DOI: 10.1142/S0218625X07010482
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