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Ni–Co–Cu supported on pseudoboehmite-derived Al2O3: Highly efficient catalysts for the hydrogenation of organic functional groups

Paper ID Volume ID Publish Year Pages File Format Full-Text
40926 45871 2012 6 PDF Available
Title
Ni–Co–Cu supported on pseudoboehmite-derived Al2O3: Highly efficient catalysts for the hydrogenation of organic functional groups
Abstract

Ni–Co–Cu catalysts supported on pseudoboehmite-derived Al2O3 were developed for efficient hydrogenation of organic functional groups: CN and NO2 associated with benzene as well as CC in butynediol. Factors such as thermo-treatment of pseudoboehmite, Ni loading, Cu and Co content, and catalyst operating parameters were systematically studied. Among the catalysts, 20%Ni–3%Cu–5%Co/Al2O3 performed the best, showing 100% feed conversion and 84–99.8% selectivity of target products. Techniques such as N2 sorption measurement, scanning electron microscope, hydrogen temperature-programmed reduction and desorption, X-ray photoelectron spectroscopy, and in situ X-ray diffraction were used to characterize the catalysts. The superior performance of the catalyst can be attributed to synergetic interaction among the Ni–Cu–Co constitutes as well as enhancement of Ni2+ reduction and Ni0 dispersion that are resulted due to the co-presence of Cu and Co.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (135 K)Download as PowerPoint slideHighlights► Ternary Ni–Cu–Co catalysts of low Ni loading supported by Al2O3 were developed. ► Catalyst is versatile yet efficient for hydrogenation of CN, NO2, and CC groups. ► Complete conversion and high selectivity were observed under mild conditions. ► Reduction of Ni2+ and dispersion of Ni0 are enhanced due to Cu and Co addition. ► Superior catalytic performance can be attributed to Ni–Cu–Co synergetic interaction.

Keywords
Hydrogenation; Nitro, nitrile and alkynyl groups; Dispersed Ni–Cu–Co catalyst
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Ni–Co–Cu supported on pseudoboehmite-derived Al2O3: Highly efficient catalysts for the hydrogenation of organic functional groups
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 425–426, 28 May 2012, Pages 68–73
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