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The use of microwave irradiation for the easy synthesis of graphene-supported transition metal nanoparticles in ionic liquids

The use of microwave irradiation for the easy synthesis of graphene-supported transition metal nanoparticles in ionic liquids
Autor:

Marquardt, D. / Vollmer, C. / Thomann, R. / Steurer, P. / Mülhaupt, R. / Redel, E. / Janiak, C. (2011) 

Quelle:

Carbon, (2011), 49, 1159-1332

Datum: Dezember 2010

Abstract

Stable ruthenium or rhodium metal nanoparticles were supported on chemically derived graphene (CDG) surfaces with small and uniform particle sizes (Ru 2.2 ± 0.4 nm and Rh 2.8 ± 0.5 nm) by decomposition of their metal carbonyl precursors by rapid microwave irradiation in a suspension of CDG in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate.

The graphene-supported hybrid nanoparticles were shown to be active and could be re-used at least 10 times as catalysts for the hydrogenation of cyclohexene and benzene under organic-solvent-free conditions with constant activities up to 1570 mol cyclohexane × (mol metal)−1 × h−1 at 4 bar and 75 °C. 

 

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