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Au nanoparticles supported on Cr-based metal-organic framework as bimetallic catalyst for selective oxidation of cyclohexane to cyclohexanone and cyclohexanol

Paper ID Volume ID Publish Year Pages File Format Full-Text
49998 46775 2012 6 PDF Available
Title
Au nanoparticles supported on Cr-based metal-organic framework as bimetallic catalyst for selective oxidation of cyclohexane to cyclohexanone and cyclohexanol
Abstract

Two bimetallic catalysts Au/MIL-53(Cr) and Au/MIL-101(Cr) were prepared by urea deposition–precipitation. The catalytic performances of these catalysts were investigated via selective oxidation of cyclohexane to cyclohexanone and cyclohexanol by molecular oxygen in the absence of solvent and initiator. It is believed that framework Cr ions are effective catalytic sites, which accounts for that Au/MIL-53(Cr) and Au/MIL-101(Cr) exhibit superior catalytic performance. The confinement effect of MIL-101(Cr) cages to Au nanoparticles results in < 2 nm Au particles, which accounts for that Au/MIL-101(Cr) presents higher selectivity than Au/MIL-53(Cr).

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Cr-based MOFs were employed as supports for Au nanoparticles by urea-DP. ► Au/MIL-n (Cr) (n = 53,101) catalyze cyclohexane selective oxidation efficiently. ► Both framework Cr ions and Au nanoparticles are catalytic sites for the reaction. ► MIL-101(Cr) cages exhibit confinement effect to Au nanoparticles.

Keywords
Cr-based MOF; Au nanoparticle; Cyclohexane; Selective oxidation
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Au nanoparticles supported on Cr-based metal-organic framework as bimetallic catalyst for selective oxidation of cyclohexane to cyclohexanone and cyclohexanol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 27, 5 October 2012, Pages 200–205
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us