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Direct synthesis of phenol from benzene catalyzed by multi-V-POMs complex

Paper ID Volume ID Publish Year Pages File Format Full-Text
40425 45853 2013 5 PDF Available
Title
Direct synthesis of phenol from benzene catalyzed by multi-V-POMs complex
Abstract

•A POM-based catalyst with multi-isolated vanadium was synthesized.•V atoms were located in both of the cation and anion parts of the catalyst.•Catalytic performance was higher than any parts of the catalyst used alone.•The increased ordered active sites enhanced the activities of the catalyst.•The reused catalyst structure is maintained and its catalytic activity is stable.

A novel catalyst, [Mo2V2O9(bpy)6][PMo11VO40], was synthesized by the self-assembling of [PMo11VO40]4− and [Mo2V2O9(bpy)6]4+ unit and characterized by elemental analyses, TG, IR, X-ray powder diffraction and X-ray single crystal diffraction. [Mo2V2O9(bpy)6][PMo11VO40] with multi-isolated active sites showed good catalytic activities for hydroxylation of benzene to phenol. A high yield of phenol (25.5%) with selectivity to phenol of 90.7% was obtained using H2O2 as oxidant. The catalyst can be recycled for 5 times while its structure was unchanged and its catalytic activity was maintained.

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Keywords
Heteropolymolybdates; Vanadium-containing cation; Benzene; Phenol; H2O2
First Page Preview
Direct synthesis of phenol from benzene catalyzed by multi-V-POMs complex
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 457, 24 April 2013, Pages 21–25
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis