炭素ナノ繊維担持金属ナノ粒子の創製と効率的水素化反応への応用

概要

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Facile synthesis of ruthenium, palladium and platinum nanoparticles supported on three types of carbon nanofibers (platelet: CNF-P, tubular: CNF-T, herringbone: CNF-H) is accomplished by pyrolysis of ruthenium carbonyl clusters, and pyrolysis and hydrogenolysis of Pd2(dba)3·CHCl3 and Pt(dba)2 [dba: dibenzylideneacetone]. TEM studies of these M/CNFs revealed that size-controlled metal nanoparticles existed on the CNFs, and that of the location was dependent on the surface nanostructures of CNFs: On the edge of the graphite layers (CNF-P), in the tubes and on the surface (CNF-T), and between the layers and on the edge (CNF-H). Among these M/CNFs, the Ru/CNF-P showed excellent catalytic activity towards arene hydrogenation with high reusability and functional group tolerance. The present Ru system is applicable to the production of octahydro-1,1-binaphthyls by partial hydrogenation of 1,1-binaphthyls. While the Pt/CNF-P behaves as an efficient catalyst for hydrogenation of substituted nitroarenes to the corresponding aniline derivatives with other functional groups remaining intact.
社団法人有機合成化学協会の論文
2009-07-01