title: Synthesis and catalytic application of PVP-coated Ru nanoparticles embedded in a porous metal-organic framework.
abstract: A hybrid catalyst consisting of polymer-coated Ru nanoparticles (Ru-PVP, PVP: poly(N-vinyl-2-pyrrolidone)) embedded in a porous metal-organic framework of ZIF-8 (Ru-PVP@ZIF-8) was synthesized by the crystallization of ZIF-8 in a methanol solution of Ru-PVP. The structural properties of Ru-PVP@ZIF-8 were examined by N2 gas adsorption, infrared spectra, and X-ray powder diffraction measurements. We successfully identified the most appropriate pretreatment conditions for surface activation of the Ru nanoparticles in the catalyst. The pretreated Ru-PVP@ZIF-8 was applied for a CO oxidation reaction with H2 gas feeds. Ru-PVP@ZIF-8 was found to exhibit higher catalytic activities and higher CO2 selectivity than those observed on a carbon-supported Ru-PVP (Ru-PVP/C), implying that the pores of the ZIF-8 provide a more suitable environment for the reaction with O2 and CO gases.
authors.affiliation: International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. yamauchi@i2cner.kyushu-u.ac.jp.
authors.forename: Masaaki
authors.initials: M
authors.lastname: Sadakiyo
authors.forename: Masaru
authors.initials: M
authors.lastname: Kon-no
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Sato
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Nagaoka
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Kasai
authors.forename: Kenichi
authors.initials: K
authors.lastname: Kato
authors.forename: Miho
authors.initials: M
authors.lastname: Yamauchi