Phosphine-stabilized ruthenium nanoparticles: The effect of the nature of the ligand in catalysis

David González-Gálvez; Pau Nolis; Karine Philippot; Bruno Chaudret; Piet W.N.M. Van Leeuwen

doi:https://doi.org/10.1021/cs200633k

Phosphine-stabilized ruthenium nanoparticles: The effect of the nature of the ligand in catalysis

David González-Gálvez, Pau Nolis, Karine Philippot, Bruno Chaudret, Piet W.N.M. Van Leeuwen

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

76 Citations (Scopus)

Abstract

Various ligands not forming monometallic complexes were used for Ru nanoparticle stabilization, enabling the control of size, shape, and electronic properties. HRMAS NMR spectroscopy allowed us to study surfacebound molecules, evidencing ligand hydrogenation and decomposition of THFduring the RuNP synthesis. Catalysis studies underscore the importance of the nature of the ligands. The RuNPs were tested in the hydrogenation of aromatics, showing very high activities (TOF ≥ 60 000 h -1, 40 bar, 393 K). A pronounced ligand effect was found, and dialkylaryl phosphine ligands gave the fastest catalyst. © 2012 American Chemical Society.

Original language	English
Pages (from-to)	317-321
Journal	ACS Catalysis
Volume	2
DOIs	https://doi.org/10.1021/cs200633k
Publication status	Published - 2 Mar 2012

Keywords

HRMAS NMR
hydrogenation of aromatics
ligand effect
ruthenium nanoparticles
surface-bound molecules characterization

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title = "Phosphine-stabilized ruthenium nanoparticles: The effect of the nature of the ligand in catalysis",

abstract = "Various ligands not forming monometallic complexes were used for Ru nanoparticle stabilization, enabling the control of size, shape, and electronic properties. HRMAS NMR spectroscopy allowed us to study surfacebound molecules, evidencing ligand hydrogenation and decomposition of THFduring the RuNP synthesis. Catalysis studies underscore the importance of the nature of the ligands. The RuNPs were tested in the hydrogenation of aromatics, showing very high activities (TOF ≥ 60 000 h -1, 40 bar, 393 K). A pronounced ligand effect was found, and dialkylaryl phosphine ligands gave the fastest catalyst. {\textcopyright} 2012 American Chemical Society.",

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AU - González-Gálvez, David

AU - Nolis, Pau

AU - Philippot, Karine

AU - Chaudret, Bruno

AU - Van Leeuwen, Piet W.N.M.

PY - 2012/3/2

Y1 - 2012/3/2

N2 - Various ligands not forming monometallic complexes were used for Ru nanoparticle stabilization, enabling the control of size, shape, and electronic properties. HRMAS NMR spectroscopy allowed us to study surfacebound molecules, evidencing ligand hydrogenation and decomposition of THFduring the RuNP synthesis. Catalysis studies underscore the importance of the nature of the ligands. The RuNPs were tested in the hydrogenation of aromatics, showing very high activities (TOF ≥ 60 000 h -1, 40 bar, 393 K). A pronounced ligand effect was found, and dialkylaryl phosphine ligands gave the fastest catalyst. © 2012 American Chemical Society.

AB - Various ligands not forming monometallic complexes were used for Ru nanoparticle stabilization, enabling the control of size, shape, and electronic properties. HRMAS NMR spectroscopy allowed us to study surfacebound molecules, evidencing ligand hydrogenation and decomposition of THFduring the RuNP synthesis. Catalysis studies underscore the importance of the nature of the ligands. The RuNPs were tested in the hydrogenation of aromatics, showing very high activities (TOF ≥ 60 000 h -1, 40 bar, 393 K). A pronounced ligand effect was found, and dialkylaryl phosphine ligands gave the fastest catalyst. © 2012 American Chemical Society.

KW - HRMAS NMR

KW - hydrogenation of aromatics

KW - ligand effect

KW - ruthenium nanoparticles

KW - surface-bound molecules characterization

U2 - https://doi.org/10.1021/cs200633k

DO - https://doi.org/10.1021/cs200633k

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EP - 321

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