title: Quantitating the lattice strain dependence of monolayer Pt shell activity toward oxygen reduction.
abstract: Lattice strain of Pt-based catalysts reflecting d-band status is the decisive factor of their catalytic activity toward oxygen reduction reaction (ORR). For the newly arisen monolayer Pt system, however, no general strategy to isolate the lattice strain has been achieved due to the short-range ordering structure of monolayer Pt shells on different facets of core nanoparticles. Herein, based on the extended X-ray absorption fine structure of monolayer Pt atoms on various single crystal facets, we propose an effective methodology for evaluating the lattice strain of monolayer Pt shells on core nanoparticles. The quantitative lattice strain establishes a direct correlation to monolayer Pt shell ORR activity.
authors.affiliation: Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan. wang.xiaoming.7u@kyoto-u.ac.jp
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Wang
authors.forename: Yuki
authors.initials: Y
authors.lastname: Orikasa
authors.forename: Yuki
authors.initials: Y
authors.lastname: Takesue
authors.forename: Hideo
authors.initials: H
authors.lastname: Inoue
authors.forename: Masashi
authors.initials: M
authors.lastname: Nakamura
authors.forename: Taketoshi
authors.initials: T
authors.lastname: Minato
authors.forename: Nagahiro
authors.initials: N
authors.lastname: Hoshi
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Uchimoto