title: Gold Nanoparticles Supported on Mesoporous Titania Thin Films with High Loading as a CO Oxidation Catalyst.
abstract: In the present work, 2.4 nm gold nanoparticles (Au NPs) are uniformly dispersed on mesoporous titania thin films which are structurally tuned by controlling the calcination temperature. The gold content of the catalyst is as high as 27.8 wt %. To our knowledge, such a high loading of Au NPs with good dispersity has not been reported until now. Furthermore, the reaction rate of the gold particles is enhanced by one order of magnitude when supported on mesoporous titania compared to non-porous titania. This significant improvement can be explained by an increase in the diffusivity of the substrate due to the presence of mesopores, the resistance to agglomeration, and improved oxygen activation.
authors.affiliation: NBC Meshtec Inc., 2-50-3 Toyoda, Hino-shi, Tokyo, 191-0053, Japan.
authors.forename: Shingo
authors.initials: S
authors.lastname: Akita
authors.affiliation: NBC Meshtec Inc., 2-50-3 Toyoda, Hino-shi, Tokyo, 191-0053, Japan.
authors.forename: Makoto
authors.initials: M
authors.lastname: Amemiya
authors.affiliation: NBC Meshtec Inc., 2-50-3 Toyoda, Hino-shi, Tokyo, 191-0053, Japan.
authors.forename: Takanori
authors.initials: T
authors.lastname: Matsumoto
authors.affiliation: NBC Meshtec Inc., 2-50-3 Toyoda, Hino-shi, Tokyo, 191-0053, Japan.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Jikihara
authors.affiliation: NBC Meshtec Inc., 2-50-3 Toyoda, Hino-shi, Tokyo, 191-0053, Japan.
authors.forename: Tsuruo
authors.initials: T
authors.lastname: Nakayama
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.|Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia.
authors.forename: Md Shahriar A
authors.initials: MSA
authors.lastname: Hossain
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.|Department of Life Science and Materials Engineering, Faculty of Engineering, Nagoya Institute of Technology (NIT), Gokiso, Showa, Nagoya, Aichi, 466-8555, Japan.
authors.forename: Kenya
authors.initials: K
authors.lastname: Kani
authors.affiliation: Department of Life Science and Materials Engineering, Faculty of Engineering, Nagoya Institute of Technology (NIT), Gokiso, Showa, Nagoya, Aichi, 466-8555, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Ishii
authors.affiliation: Department of Biotechnology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh.
authors.forename: Md Tofazzal
authors.initials: MT
authors.lastname: Islam
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
authors.forename: Xiangfen
authors.initials: X
authors.lastname: Jiang
authors.affiliation: Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
authors.forename: Amanullah
authors.initials: A
authors.lastname: Fatehmulla
authors.affiliation: Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
authors.forename: Wazirzada Aslam
authors.initials: WA
authors.lastname: Farooq
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Bando
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
authors.forename: Victor
authors.initials: V
authors.lastname: Malgras
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.|Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, North Wollongong, NSW, 2500, Australia.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Yamauchi
keywords: gold catalyst; mesoporous films; mesoporous materials; nanoparticles; titania