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题名: Epoxidation of cyclohexene on Ti/SiO2 catalysts prepared by chemical grafting TiCl4 on deboronated silica xerogel
作者: Wang, SL;  Yang, QH;  Wu, ZL;  Li, MJ;  Lu, JQ;  Tan, ZY;  Li, C
关键词: Ti/de[B]SiO2 ;  chemical grafting ;  deboronation ;  cyclohexene ;  epoxidation
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2001-07-05
卷: 172, 期:1-2, 页:219-225
收录类别: SCI
文章类型: Article
部门归属: 5094
项目归属: 503
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Ti/SiO2 (or Ti/de[B]SiO2) catalysts were prepared by grafting deboronated silica xerogel with gaseous TiCl4. Using TBHP as oxidant, the Ti/de[B]SiO2 catalyst shows both catalytic activity and selectivity in epoxidation of cyclohexene better than 80%, and the activity can be comparable with that of Ti-beta. The catalytic activity of Ti/de[B]SiO2 strongly depends on the content of B of support precursor, and the pretreatment temperature of the support. IR studies show that the sites in the deboronated silica xerogel to react with TiCl4 are not only the silanol nests, but also the defect sites produced during the deboronation. (C) 2001 Elsevier Science B.V. All rights reserved.
关键词[WOS]: MIXED OXIDES ;  LEWIS ACIDITY ;  OXIDATION ;  TI ;  BORALITES ;  ZEOLITES ;  PEROXIDE ;  OLEFINS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000169714900020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/85827
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Liaoning Normal Univ, Dept Chem, Dalian 116029, Peoples R China

Recommended Citation:
Wang, SL,Yang, QH,Wu, ZL,et al. Epoxidation of cyclohexene on Ti/SiO2 catalysts prepared by chemical grafting TiCl4 on deboronated silica xerogel[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2001,172(1-2):219-225.
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