Catalytic Activity of Supported Au Nanoparticles Deposited from Block Copolymer 
Micelles

Jaramillo, Thomas F.; Baeck, Sung-Hyeon; Roldan Cuenya, Beatriz; McFarland, Eric W.

doi:10.1021/ja029800v

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Catalytic Activity of Supported Au Nanoparticles Deposited from Block Copolymer Micelles

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Jaramillo, T. F., Baeck, S.-H., Roldan Cuenya, B., & McFarland, E. W. (2003). Catalytic Activity of Supported Au Nanoparticles Deposited from Block Copolymer Micelles. Journal of the American Chemical Society, 125(24), 7148-7149. doi:10.1021/ja029800v.

Cite as: https://hdl.handle.net/21.11116/0000-0006-E413-3

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.