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Liquid-phase selective hydrogenation of benzophenone over ultrasonic-assisted Ni–La–B amorphous alloy catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
50953 46823 2010 5 PDF Available
Title
Liquid-phase selective hydrogenation of benzophenone over ultrasonic-assisted Ni–La–B amorphous alloy catalyst
Abstract

The liquid-phase selective hydrogenation of benzophenone to benzhydrol has been investigated over Ni–B amorphous alloy catalysts, and a detailed reaction mechanism has been proposed based on GC–MS. La-doped Ni–B exhibits smaller particle sizes and more active centers, but some agglomeration compared with Ni–B. The agglomeration can be inhibited by application of ultrasound; wherein the surface of the catalyst becomes homogeneous and the coverage of Ni centers is decreased correspondingly. The ultrasonic-assisted Ni–La–B catalyst is found to have better catalytic performance than Ni–B, Ni–La–B and Raney Ni and this can be attributed to the synergistic effect between La addition and ultrasound.

Graphical AbstractProposed routes for benzophenone hydrogenation.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights►Ni–La–B and Ni–La–B-u were first used in benzophenone hydrogenation. ►Ni–La–B-u exhibited the highest activity with almost 100% conversion. ►Ni–La–B-u possesses more active Ni centers and smaller particle sizes. ►The synergistic effect between La addition and ultrasound was clarified. ►A detailed reaction mechanism has been proposed based on GC–MS results.

Keywords
Ultrasonic-assisted; Ni–La–B amorphous alloy; Benzophenone; Hydrogenation; Synergistic effect
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Liquid-phase selective hydrogenation of benzophenone over ultrasonic-assisted Ni–La–B amorphous alloy catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 3, 30 November 2010, Pages 212–216
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