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Issue 30, 2011
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N-Donor ligands based on bipyridine and ionic liquids: an efficient partnership to stabilize rhodium colloids. Focus on oxygen-containing compounds hydrogenation

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Abstract

Polynitrogen ligands and/in ionic liquids (ILs) are described as a pertinent tandem to efficiently stabilize rhodium nanoparticles (NPs) in the size range of 2.0 nm for catalytic applications. Several N-donor ligands based on bipyridine skeleton were used as extra protective agents in [BMI][PF6] and compared in the hydrogenation of functionalized aromatic compounds at 80 °C and under 40 bar H2. The nature of the bipyridine derivative and its influence on the coordination mode on the particle surface were proposed to explain the observed different kinetic properties. The hydrogenation of various oxygen-containing arenes was investigated and original results were described in the reduction of anisole and cresols as model lignin compounds, providing a significant ratio of ketone derivatives. A first explanation based on possible reaction routes is proposed to justify the formed products.

Graphical abstract: N-Donor ligands based on bipyridine and ionic liquids: an efficient partnership to stabilize rhodium colloids. Focus on oxygen-containing compounds hydrogenation

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Publication details

The article was received on 03 Mar 2011, accepted on 20 May 2011 and first published on 09 Jun 2011


Article type: Paper
DOI: 10.1039/C1CP20602H
Citation: Phys. Chem. Chem. Phys., 2011,13, 13510-13517
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    N-Donor ligands based on bipyridine and ionic liquids: an efficient partnership to stabilize rhodium colloids. Focus on oxygen-containing compounds hydrogenation

    A. Denicourt-Nowicki, B. Léger and A. Roucoux, Phys. Chem. Chem. Phys., 2011, 13, 13510
    DOI: 10.1039/C1CP20602H

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