Catalytic Activity of Supported Au Nanoparticles Deposited from Block Copolymer Micelles
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- 24 May 2003
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 125 (24), 7148-7149
- https://doi.org/10.1021/ja029800v
Abstract
Quasi-ordered, highly dispersed, gold nanoclusters of tightly controlled particle size were synthesized by dip-coating substrates with gold precursors encapsulated by block-copolymer micelles. By this method, gold particles (4.8 +/- 1.3 nm) were deposited on ITO-coated glass and shown to be catalytically active for electro-oxidation of carbon monoxide. XPS confirmed the catalytically active particles were predominantly Au0; however, a large fraction existed as Au3+. Whereas bulk gold is inert, these results demonstrate that catalytically active Au nanoparticles can be derived from micelle encapsulation.Keywords
This publication has 10 references indexed in Scilit:
- Oxidation-Resistant Gold-55 ClustersScience, 2002
- Semiconductor nanostructures defined with self-organizing polymersJournal of Applied Physics, 2002
- Oxidation Catalysis by Supported Gold Nano-ClustersTopics in Catalysis, 2002
- Catalytic activity of supported nanometer-sized metal clustersApplied Surface Science, 2000
- XPS studies on the gold oxide surface layer formationElectrochemistry Communications, 2000
- Preparation of Gold/triblock Copolymer Composite NanoparticlesJournal of Nanoparticle Research, 2000
- Ordered Deposition of Inorganic Clusters from Micellar Block Copolymer FilmsLangmuir, 1999
- Stable, Monolayer-Protected Metal Alloy ClustersJournal of the American Chemical Society, 1998
- Alkanethiolate Gold Cluster Molecules with Core Diameters from 1.5 to 5.2 nm: Core and Monolayer Properties as a Function of Core SizeLangmuir, 1998
- Electrocatalytic properties of ultrafine gold particles towards oxidation of acetaldehyde and ethanolJournal of Electroanalytical Chemistry, 1993