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Nickel phosphide nanocatalysts for the chemoselective hydrogenation of alkynes

Paper ID Volume ID Publish Year Pages File Format Full-Text
32222 44912 2012 8 PDF Available
Title
Nickel phosphide nanocatalysts for the chemoselective hydrogenation of alkynes
Abstract

SummaryWell-defined 25 nm nickel phosphide nanoparticles act as a colloidal catalyst for the chemoselective hydrogenation of terminal and internal alkynes. Cis-alkenes are obtained in mild conditions with good conversion and selectivity. The phosphorus inserted in the Ni–P nanoparticles is critical for the selectivity of the nanocatalyst. Mechanistic investigations using isotope labeling provide insight on the reactants interaction with the nanoparticles surface. They pinpoint the occurrence of CH bond cleavage in terminal alkynes during the reaction.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (202 K)Download as PowerPoint slideHighlights► Ni2P nanoparticles selectively hydrogenate phenylacetylene to styrene in solution. ► The hydrogenation reaction is successfully extended to a range of funtionnal alkynes. ► Mechanistic insights are provided by isotopic experiments in liquid and gas-phase. ► Ni2P nanoparticles are compared with Ni2P-Ni core-shell and pure Ni nanoparticles. ► The presence of phosphorus is found to be critical for the reaction selectivity.

Keywords
Nanocatalysis; Chemoselective hydrogenation; Nickel phosphide; Alkynes hydrogenation; Core–shell nanoparticles
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Nickel phosphide nanocatalysts for the chemoselective hydrogenation of alkynes
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Publisher
Database: Elsevier - ScienceDirect
Journal: - Volume 7, Issue 1, February 2012, Pages 21–28
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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