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Hongchen Guo

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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
钛硅分子筛TS-1的酸性表征及酸催化性能

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Indexed by:Journal Article

Date of Publication:2009-06-01

Journal:催化学报

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

Volume:30

Issue:6

Page Number:482-484

ISSN:0253-9837

Key Words:钛硅分子筛;酸性;Hammett指示剂;醚化反应;环胺化反应

Abstract:采用Hammett指示剂滴定法表征了钛硅沸石TS-1的酸性.结果表明,TS-1酸强度范围为+3.3<H0≤+4.8.其中,在+3.85<H0≤+4.8范围的弱酸中心可能与TS-1骨架钛有关,而在+3.3<H0≤+3.85的较强酸中心则可能与无定形的六配位非骨架钛有关.TS-1上的较强酸中心能够显著地催化环氧丙烷与甲醇的醚化反应,而TS-1上的弱酸中心对该反应几乎没有催化活性,但弱酸中心对乙二胺环胺化生成哌嗪和三乙烯二胺反应具有高活性和高选择性.这表明TS-1作为一种弱的固体酸催化剂,有可能应用于选择氧化以外的催化反应.