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Issue 40, 2013
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Investigation of the surface chemistry of phosphine-stabilized ruthenium nanoparticles – an advanced solid-state NMR study

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Abstract

31 P–13C REDOR NMR measurements allowed a reasonable approximation of distances between stabilizing ligands and carbon monoxide (CO) molecules on the surface of phosphine-stabilized ruthenium nanoparticles (RuNPs). The studied systems are RuNPs in the size range of 1–2 nm stabilized with 1,3,5-triaza-7-phosphaadamantane (PTA) or triphenylphosphine (PPh3) and exposed to a CO atmosphere. This study sheds some light on the interactions between CO and phosphine molecules as well as on their binding geometries on the surface of the RuNPs. As information on the ligand location and mobility is precious for the understanding of the chemical and catalytic properties of nanoparticles, these results support the interest of using sophisticated NMR tools to investigate their surface chemistry.

Graphical abstract: Investigation of the surface chemistry of phosphine-stabilized ruthenium nanoparticles – an advanced solid-state NMR study

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Publication details

The article was received on 12 Jul 2013, accepted on 23 Aug 2013 and first published on 23 Aug 2013


Article type: Paper
DOI: 10.1039/C3CP52927D
Phys. Chem. Chem. Phys., 2013,15, 17383-17394

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    Investigation of the surface chemistry of phosphine-stabilized ruthenium nanoparticles – an advanced solid-state NMR study

    T. Gutmann, E. Bonnefille, H. Breitzke, P. Debouttière, K. Philippot, R. Poteau, G. Buntkowsky and B. Chaudret, Phys. Chem. Chem. Phys., 2013, 15, 17383
    DOI: 10.1039/C3CP52927D

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