A novel stabilisation model for rutheniumnanoparticles in imidazolium ionic liquids: in situ spectroscopic and labelling evidence
文献情報
Paul S. Campbell, Catherine C. Santini, Denis Bouchu, Bernard Fenet, Karine Philippot, Bruno Chaudret, Agílio A. H. Pádua, Yves Chauvin
In situ labelling and spectroscopic experiments are used to explain the key points in the stabilisation of ruthenium nanoparticles (RuNPs) generated in imidazolium-based ionic liquids (ILs) by decomposition of (η4-1,5-cyclooctadiene)(η6-1,3,5-cyclooctatriene)ruthenium(0), Ru(COD)(COT), under dihydrogen. These are found to be: (1) the presence of hydrides at the RuNP surface and, (2) the confinement of RuNPs in the non-polar domains of the structured IL, induced by the rigid 3-D organisation. These results lead to a novel stabilisation model for NPs in ionic liquids.
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