title: Catalytic activity of supported Au nanoparticles deposited from block copolymer micelles.
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.
authors.affiliation: Department of Chemical Engineering, University of California, Santa Barbara, California 93106-5080, USA.
authors.forename: Thomas F
authors.initials: TF
authors.lastname: Jaramillo
authors.forename: Sung-Hyeon
authors.initials: SH
authors.lastname: Baeck
authors.forename: Beatriz Roldan
authors.initials: BR
authors.lastname: Cuenya
authors.forename: Eric W
authors.initials: EW
authors.lastname: McFarland