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Reaction Kinetics and Catalysis Letters

, Volume 87, Issue 1, pp 77–83 | Cite as

Increasing the propylene epoxidation activity of TS-1 catalysts by hydrothermal treatment of ammonia solution

  • Na Liu
  • Hongchen Guo
  • Xiangsheng Wang
  • Lixing Chen
  • Longjiang Zoub
Article

Summary

Treating titanium silicalite (TS-1) with ammonia solution under hydrothermal conditions proves to be an effective post-synthesis modification method for improving TS-1 catalytic activity in propylene epoxidation. Characterizations indicate that the treated TS-1 did not change TS-1 composition and generate more Ti (IV)-superoxide species (gz = 2.0265, gy = 2.0090, gx = 2.0022) when interacting with aqueous H2O2(30 wt.%) compared with the as-synthesized one.</o:p>

modification Epoxidation Ti (IV)-superoxide species 

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Copyright information

© Springer-Verlag/Akadémiai Kiadó 2005

Authors and Affiliations

  • Na Liu
    • 1
  • Hongchen Guo
    • 2
  • Xiangsheng Wang
    • 3
  • Lixing Chen
    • 4
  • Longjiang Zoub
    • 5
  1. 1.Department of Catalytic Chemistry and Engineering & State Key Laboratory of Fine Chemicals, Dalian University of Technology
  2. 2.Department of Catalytic Chemistry and Engineering & State Key Laboratory of Fine Chemicals, Dalian University of Technology
  3. 3.Department of Catalytic Chemistry and Engineering & State Key Laboratory of Fine Chemicals, Dalian University of Technology
  4. 4.Department of Catalytic Chemistry and Engineering & State Key Laboratory of Fine Chemicals, Dalian University of Technology
  5. 5.Center of Measurement and Analysis of Materials, Dalian University of Technology

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