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Highly efficient Ni/CeO2 catalyst for the liquid phase hydrogenation of maleic anhydride

Paper ID Volume ID Publish Year Pages File Format Full-Text
39514 45825 2014 9 PDF Available
Title
Highly efficient Ni/CeO2 catalyst for the liquid phase hydrogenation of maleic anhydride
Abstract

•Ni/CeO2 is highly active in maleic anhydride hydrogenation.•H2 dissociate on three active sites.•Oxygen vacancies in CeO2 are critical.

Mesoporous structured Ni(10 wt%)/CeO2, prepared via a simple incipient wetness impregnation of mesoporous CeO2, was used as a novel catalyst for the maleic anhydride hydrogenation (MAH) and characterised using XRD, N2 adsorption–desorption, H2-TPR, XPS and H2-TPD techniques. In comparison with the Ni(10 wt%)/Al2O3, the Ni/CeO2 exhibited nearly 12 times higher initial specific activity in MAH than in succinic anhydride (SA) and enhanced selectivity to γ-butyrolactone (GBL) in the subsequent hydrogenation process. The two-step route of MAH on Ni/CeO2 was verified based on the faster conversion rate of maleic anhydride (MA) to SA, in which Ni determines initial selectivity while CeO2 can promote the conversion rate. The excellent catalytic performance of the Ni/CeO2 was related to the higher dispersion of metallic Ni, oxygen vacancies on the CeO2 support and the suitable porosity of the Ni/CeO2.

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Keywords
Ni/CeO2 catalyst; Hydrogenation; Oxygen vacancy; Maleic anhydride
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Highly efficient Ni/CeO2 catalyst for the liquid phase hydrogenation of maleic anhydride
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 488, November 2014, Pages 256–264
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