title: Structure consideration of platinum nanoparticles constructing nanostructures obtained by electrochemical dealloying of a Cu-Pt alloy.
abstract: Many nanoporous metals have been applied for catalysis and show active properties. In this study, nanoporous platinum was successfully prepared from a Cu-Pt (50/50 w/w) alloy plate by electrochemical dealloying. In order to reveal their detailed structures in nanometer order, TEM observation of the surface area of the alloy plate was performed by using focused ion beam (FIB) for sample preparation. Peeling off the surface platinum nanoparticles could be also successfully preformed by using ultra sonification and their TEM observation revealed the units of the platinum nanoporous structures.
authors.affiliation: Faculty of Engineering, Division of Materials Science and Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
authors.forename: Kazuki
authors.initials: K
authors.lastname: Maruya
authors.forename: Ryoji
authors.initials: R
authors.lastname: Yamauchi
authors.forename: Takashi
authors.initials: T
authors.lastname: Narushima
authors.forename: Seiji
authors.initials: S
authors.lastname: Miura
authors.forename: Tetsu
authors.initials: T
authors.lastname: Yonezawa