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题名: Direct immobilization of self-assembled polyoxometalate catalyst in layered double hydroxide for heterogeneous epoxidation of olefins
作者: Liu, Peng1;  Wang, Hong1;  Feng, Zhaochi1;  Ying, Pinliang1;  Li, Can1
通讯作者: 李灿
关键词: heterogeneous catalysis ;  epoxidation ;  self-assembled polyoxometalates ;  layered double hydroxides ;  allylic alcohols ;  H2O2
刊名: JOURNAL OF CATALYSIS
发表日期: 2008-06-10
DOI: 10.1016/j.jcat.2008.03.022
卷: 256, 期:2, 页:345-348
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 503
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: We present a novel method for the fabrication of immobilized polyoxometalate catalysts that directly use a self-assembled polyoxometalate solution without isolation and purification. Specifically, self-assembled [WZn3(ZnW9O34)(2)](12-) catalyst can be selectively immobilized into layered double hydroxides in the presence of undesired anions. The material thus obtained demonstrates high dispersion and good hydrothermal stability. The heterogenized catalyst exhibits excellent activity (turnover frequency up to 18,000 h(-1) at 50 degrees C) in the epoxidation of allylic alcohols with aqueous H2O2 and can be readily recycled with no apparent loss of performance. (c) 2008 Elsevier Inc. All rights reserved.
关键词[WOS]: HYDROGEN-PEROXIDE ;  OXIDATION REACTIONS ;  SOLID CATALYSTS ;  WATER ;  PEROXOTUNGSTATE ;  ALCOHOLS ;  ALKENES ;  OXYGEN ;  ANION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000256842100020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101291
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

Recommended Citation:
Liu, Peng,Wang, Hong,Feng, Zhaochi,et al. Direct immobilization of self-assembled polyoxometalate catalyst in layered double hydroxide for heterogeneous epoxidation of olefins[J]. JOURNAL OF CATALYSIS,2008,256(2):345-348.
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