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Epoxidation of allylic alcohols on self-assembled polyoxometalates hosted in layered double hydroxides with aqueous H2O2 as oxidant
Liu, Peng; Wang, Changhao; Li, Can; Li C(李灿)
关键词Heterogeneous Catalysis Epoxidation Self-assembled Polyoxometalates Layered Double Hydroxides Allylic Alcohols Hydrogen Peroxide
刊名JOURNAL OF CATALYSIS
2009-02-15
DOI10.1016/j.jcat.2008.12.018
262期:1页:159-168
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
关键词[WOS]MANGANESE-CONTAINING POLYOXOMETALATE ; HYDROGEN-PEROXIDE ; HETEROGENEOUS EPOXIDATION ; SELECTIVE EPOXIDATION ; OLEFIN EPOXIDATION ; BIPHASIC OXIDATION ; TRIPHASE CATALYST ; HETEROPOLY ACIDS ; IN-SITU ; ALKENES
英文摘要A series of self-assembled polyoxometalate (POM) catalysts were directly immobilized into layered double hydroxides (LDH) by a selective ion-exchange method. Sandwich-type POM species are found to be more favorable than Keggin-type POM for the direct immobilization in LDH. because strict pH controlling is not needed and the LDH hosts can be kept intact. The resulting LDH-POM catalysts were evaluated in the epoxidation of allylic alcohols with aqueous H2O2 as the oxidant without using organic solvent. The heterogeneous LDH-POM catalysts show much higher epoxide selectivity than the corresponding homogeneous Na-POM catalysts, which can be attributed to the beneficial effect of basic LDH host on the suppression of the acid-catalyzed epoxide hydrolysis. The cooperation between the POM guest and the LDH host can achieve up to 99% selectivity of epoxide, 95% H2O2 efficiency and 37200 h(-1) TOF without the need of base additives and pH controlling, and the host-guest catalysts can be readily recycled with no apparent loss of catalytic performance. (C) 2008 Elsevier Inc. All rights reserved.
语种英语
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WOS记录号WOS:000264123000019
引用统计
被引频次:60[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/102479
专题中国科学院大连化学物理研究所
通讯作者Li C(李灿)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Liu, Peng,Wang, Changhao,Li, Can,et al. Epoxidation of allylic alcohols on self-assembled polyoxometalates hosted in layered double hydroxides with aqueous H2O2 as oxidant[J]. JOURNAL OF CATALYSIS,2009,262(1):159-168.
APA Liu, Peng,Wang, Changhao,Li, Can,&李灿.(2009).Epoxidation of allylic alcohols on self-assembled polyoxometalates hosted in layered double hydroxides with aqueous H2O2 as oxidant.JOURNAL OF CATALYSIS,262(1),159-168.
MLA Liu, Peng,et al."Epoxidation of allylic alcohols on self-assembled polyoxometalates hosted in layered double hydroxides with aqueous H2O2 as oxidant".JOURNAL OF CATALYSIS 262.1(2009):159-168.
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