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Highly efficient and stable Au/Mn2O3 catalyst for oxidative cyclization of 1,4-butanediol to γ-butyrolactone

Paper ID Volume ID Publish Year Pages File Format Full-Text
40442 45854 2013 8 PDF Available
Title
Highly efficient and stable Au/Mn2O3 catalyst for oxidative cyclization of 1,4-butanediol to γ-butyrolactone
Abstract

•Highly active gold nanoparticles supported on manganese oxides.•Excellent activity for oxidative lactonization of 1,4-butanediol.•100% selectivity to γ-butyrolactone, especially in Au/Mn2O3.•Outstanding stability without loss of activity for Au/Mn2O3.•Support played a significant role in controlling activity.

In this work, gold nanoparticles deposited on manganese sesquioxide (Mn2O3) showed high activity in the oxidative lactonization of 1,4-butanediol to γ-butyrolactone with air as the oxidant. On the contrary, nano-sized gold supported on manganese dioxide (MnO2) and manganese oxide (MnO) presented much lower activities. XRD, TEM and XPS characterizations revealed that the superior catalytic performance of Au/Mn2O3 could be ascribed to the highest dispersion of gold particles and unique intrinsic properties of Mn2O3, which possesses the appropriate point of zero charge for deposition–precipitation method, the most quantity of oxygen vacancies and the appropriate gold–support interaction. Au/Mn2O3 exhibited selectivity of 100%, which could facilitate the purification of target product from the reaction mixture. Furthermore, the as-prepared Au/Mn2O3 catalyst could be recovered by simple filtration, and used repetitively or preserved for a long period without apparent loss of activity.

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Keywords
Au/Mn2O3 catalyst; Manganese oxides supports; 1,4-Butanediol; Oxidative lactionzation
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Highly efficient and stable Au/Mn2O3 catalyst for oxidative cyclization of 1,4-butanediol to γ-butyrolactone
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 458, 10 May 2013, Pages 63–70
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us