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Grafting polyethylene glycols molybdenum(VI) complexes on ZSPP and their catalytic epoxidation of cyclohexene

Paper ID Volume ID Publish Year Pages File Format Full-Text
51816 46854 2008 4 PDF Available
Title
Grafting polyethylene glycols molybdenum(VI) complexes on ZSPP and their catalytic epoxidation of cyclohexene
Abstract

A new type of inorganic–organic hybrid materials – zirconium oligo-styrenyl phosphonate hydrogen phosphate (ZSPP) was used to prepare heterogeneous catalysts for olefin epoxidation by grafting polyethylene glycols on ZSPP and subsequently coordinating with MoO2(acac)2. The catalysts were characterized by IR, Raman, XPS, XRD, TG, BET and elemental analysis. The catalytic activities of the prepared catalysts were evaluated through the epoxidation of cyclohexene using TBHP as oxidant. The results indicated that conversion and selectivity increased at first and then decreased with increasing numbers of O atoms in the ligands, and the catalyst 2b gave the best catalytic results that the conversion and selectivity was up to 98.9% and 97.4%, respectively.

Keywords
Zirconium oligo-styrenyl phosphonate hydrogen phosphate; Amorphous; Molybdenum(VI) complex; Heterogeneous catalyst; Epoxidation
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Grafting polyethylene glycols molybdenum(VI) complexes on ZSPP and their catalytic epoxidation of cyclohexene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 15, 20 September 2008, Pages 2616–2619
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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