Nanoparticles organometallic, noble metals

ROsch N (1999) A Critical Assessment of Density Functional Theory with Regard to Applications in Organometallic Chemistry. 4 109-163 Roucoux A (2005) Stabilized Noble Metal Nanoparticles An Unavoidable Family of Catalysts for Arene Derivative Hydrogenation. 16 261-279... 

A. Roucoux, Stabilized noble metal nanoparticles An unavoidable family of catalysts for arene derivatives hydrogenation, in C. Coperet, B. Chaudret (Eds.), Topics in Organometallic Chemistry. Springer, 2005, Vol. 16, p. 261. 

We have described four significant catalytic systems consisting of stabilized metal nanoparticles in the hydrogenation of monocyclic aromatic compounds. Four noble metals are efficient in this reaction Rh, Ru, Ir, and Pt. Several stabilization methods have been described which represent typical nanoparticle stabihzers polymers, surfactants, polyoxoanions and ionic liquids. Two approaches are developed for the preparation of nanocatalysts which provide interesting results in catalytic apphcations the reduction starting with an organometalhc precursor or a metal salt. The organometallic... 

Hydrogen oxidation catalysis happens to be more difficult to obtain than hydrogen production, if noble metals are excluded. In particular, several nanoparticulate catalysts such as transition metal oxides/sulfides-based nanoparticles catalyze H2 evolution [29-34], while only tungsten carbide has been demonstrated to be active for H2 oxidation [35]. Even in the case of organometallic catalysts, only few complexes have proved to be able to catalyze H2 oxidation rather than evolution (see below). 

Philippot, K. and B. Chaudret. 2003. Organometallic approach to the synthesis and surface reactivity of noble metal nanoparticles. C. R. Chim. 6 (8-10) 1019-1034. 

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