Factors in gold nanocatalysis: oxidation of CO in the non-scalable size regime

A review; focusing on size-selected gold clusters consisting of up to 20 atoms, i.e., in the size regime where properties cannot be obtained from those of the bulk material through scaling considerations, we discuss the current state of understanding pertaining to various factors that control the reactivity and catalytic activity of such nanostructures, using the CO oxidn. reaction catalyzed by the gold nanoclusters adsorbed on MgO as a paradigm. These factors include the role of the metal-oxide support and its defects, the charge state of the cluster, structural fluxionality of the clusters, electronic size effects, the effect of an underlying metal support on the dimensionality, charging and chem. reactivity of gold nanoclusters adsorbed on the metal-supported metal-oxide, and the promotional effect of water. We show that through joined exptl. and first-principles quantum mech. calcns. and simulations, a detailed picture of the reaction mechanism emerges. [on SciFinder(R)]     «

A review; focusing on size-selected gold clusters consisting of up to 20 atoms, i.e., in the size regime where properties cannot be obtained from those of the bulk material through scaling considerations, we discuss the current state of understanding pertaining to various factors that control the reactivity and catalytic activity of such nanostructures, using the CO oxidn. reaction catalyzed by the gold nanoclusters adsorbed on MgO as a paradigm. These factors include the role of the metal-oxid...     »

Oxidation (catalytic, mechanism factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime) Adsorbed substances Catalysis Catalyst supports Electric charge Fluxional rearrangement Nanostructures Oxidation catalysts Reactivity (factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime) Oxides Role: CAT (Catalyst use), PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process), USES (Uses) (factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime) Clusters (metal factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime) review gold nanocatalysis oxidn carbon monoxide nonscalable size regime     «

Oxidation (catalytic, mechanism factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime) Adsorbed substances Catalysis Catalyst supports Electric charge Fluxional rearrangement Nanostructures Oxidation catalysts Reactivity (factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime) Oxides Role: CAT (Catalyst use), PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process), USES (Uses) (factors in gold nanocatalysis and oxidn. of...     »

CAN 147:244370 67-0 Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms School of Physics, Georgia Institute of Technology, Atlanta, GA, USA. Journal; General Review 1022-5528 7440-57-5 (Gold) Role: CAT (Catalyst use), PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process), USES (Uses) (factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime); 630-08-0 (Carbon monoxide) Role: PEP (Physical, engineering or chemical process), PRP (Properties), RCT (Reactant), PROC (Process), RACT (Reactant or reagent) (factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime)     «

CAN 147:244370 67-0 Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms School of Physics, Georgia Institute of Technology, Atlanta, GA, USA. Journal; General Review 1022-5528 7440-57-5 (Gold) Role: CAT (Catalyst use), PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process), USES (Uses) (factors in gold nanocatalysis and oxidn. of CO in the non-scalable size regime); 630-08-0 (Carbon monoxide) Role: PEP (Physical, engineering or chemical process), PRP (Pro...     »