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中文
Hongchen Guo

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates


Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:School of Chemical Engineering
Discipline:Industrial Catalysis
Physical Chemistry (including Chemical Physics)
Business Address:521 Room,Chemical Engineering Building B,West Campus, Dalian University of Technology.
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Current position: Home >> Scientific Research >> Paper Publications
钛硅沸石TS-1在丙烯环氧化反应环境中的水热稳定性

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Indexed by:Journal Article

Date of Publication:2003-06-01

Journal:催化学报

Included Journals:CSCD、ISTIC、PKU、SCIE、Scopus

Volume:24

Issue:6

Page Number:437-440

ISSN:0253-9837

Key Words:钛硅沸石;晶体结构;骨架钛;水热稳定性;丙烯;环氧化,过氧化氢,环氧丙烷

Abstract:通过1200 h模拟实验,考察了CH3OH-H2O2丙烯环氧化水热环境对廉价法合成的大晶粒钛硅沸石TS-1(1 μm×2 μm×6 μm,n(Si)/n(Ti)=53.6)结构的影响. 通过XRF,XRD,FT-IR,UV-Vis,NH3-TPD,SEM,N2物理吸附和丙烯环氧化探针反应等表征手段发现,在丙烯环氧化反应的水热环境中,TS-1沸石的晶体结构和骨架钛较稳定,TS-1沸石长时间与H2O2作用,其表面也不会被酸化; 处理后的TS-1样品的催化活性和选择性不变. 这些结果表明,用廉价法合成的大晶粒钛硅沸石TS-1与H2O2的作用是可逆的. 这可能与TS-1沸石的合成条件有关.