title: Advances in Gold Catalysis and Understanding the Catalytic Mechanism.
abstract: When gold is deposited as nanoparticles (NPs) with mean diameters of 2-5 nm or clusters with mean diameters below 2 nm onto a variety of supports such as metal oxides, carbons, polymers, etc., the supported Au NPs exhibit unique catalytic properties, while bulk Au is almost inert as a catalyst. A lot of research works indicate that the key factors of the catalysis by supported Au NPs are the selection of the supports, the control of the Au NP size, the shape of the Au NPs, and the strong junction between Au NPs and the supports, because the perimeter zone around Au NPs acts as the active site for many reactions. In order to elucidate the origin of catalysis by supported Au NPs, the interplay between physicochemical analysis, computational studies, and rational experiments for catalysis by supported Au NPs is becoming more and more important. This article summarizes our experiences and progress in such interplay.
authors.affiliation: Research Center for Gold Chemistry Graduate School of Urban Environmental Sciences Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397, Japan.
authors.forename: Tamao
authors.initials: T
authors.lastname: Ishida
authors.affiliation: Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, 1-30 Goryoohara, Kyoto, 615-8245, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Koga
authors.affiliation: Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, 1-30 Goryoohara, Kyoto, 615-8245, Japan. ok@chem.sci.osaka-u.ac.jp.|Department of Chemistry Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan. ok@chem.sci.osaka-u.ac.jp.
authors.forename: Mitsutaka
authors.initials: M
authors.lastname: Okumura
authors.affiliation: Research Center for Gold Chemistry Graduate School of Urban Environmental Sciences Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-0397, Japan.|Gold Catalysis Research Center Dalian Institute of Chemical Physics, 457 Zhongshan Road, Dalian, 116023, P. R. China.
authors.forename: Masatake
authors.initials: M
authors.lastname: Haruta
keywords: gold; heterogeneous catalysis; nanoparticles; reaction mechanisms; supported catalysts