Bandeau SYMAC

metal nanoparticles on a solid support

As part of a thesis under joint supervision with Pr. Philippe Serp, we developed the functionalization of MWCNTs (by imidazolium groups) to support catalytic phases in an ionic liquid (SILP approach) and these systems have been applied in the sequential process coupling / hydrogenation and exhibit high activity and possible recyclable (Dalton Trans. 2010, 39, 7565 ; ChemCatChem 2011, 3, 749).

Systems with immobilization of ruthenium nanoparticles on functionalized MWCNTs (with carboxylic acid) were applied in the hydrogenation process (J. Mol. Catal. A: Chem. 2010, 332, 106). The confinment of Pt and Ru bimetallic nanoparticles in MWCNTs functionalized (with long alkyl chains) was performed (ChemCatChem 2012, 4, 118) and such systems are more efficient, in terms of selectivity, that unsupported MNPs.

Metal nanoparticles through functionalized membranes

As part of a collaboration with the Chemical Engineering Laboratory of Toulouse (Team of Pierre Aimar, and subject developed with Jean-Christophe Remigy and Jean-François Lahitte) -project funded by the UPS through calls transversales- research, we develop applications of functionalized membrane by polymers, for immobilization of metal nanoparticles, including PdNPs. Current studies focus on the functionalization of a polymer membrane flat (flat-sheet) by radical photo-initiated polymerization of ImILs monomers, an ionic poly-liquid grafted on a polyethylsulfone support.

Preliminary results in the C-C and C-heteroatom bond formation and in hydrogenation reactions are very encouraging: the activities are high with excellent chemoselectivity for very short residence times (4-8 s) with temperatures between 30-60 ° C, without metal leaching.

graphique 14

UPS

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