Effects of Carbon Support Nanostructures on the Reactivity of a Ru Nanoparticle Catalyst in a Hydrogen Transfer Reaction

Takeharu Yoshii, Kazuki Nakatsuka, Tatsuya Mizobuchi, Yasutaka Kuwahara, Hiroyuki Itoi, Kohsuke Mori, Takashi Kyotani, Hiromi Yamashita

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Carbon materials have been extensively studied for several decades as catalytic supports because of their high surface area and porous structures. However, carbon black supports, such as Ketjen black or Vulcan XC-72, have rarely been utilized for organic syntheses, though they have recently been widely studied in electrocatalysts. In this study, we examined Ketjen black with high surface area and high pore volume as a support for Ru nanoparticles (NPs) in the catalytic transfer hydrogenation (CTH) reaction. The performance of the Ru NP catalyst supported on Ketjen black was superior to that on other carbon supports. The catalysts were structurally characterized using X-ray diffraction, X-ray absorption fine structure, transmission electron microscopy, CO chemisorption, and N2 adsorption/desorption measurements. A clear correlation was observed among the micro- and mesopore volume, the adsorption capacity of reactant, and the catalytic activity, and therefore, micro- and mesopores in Ketjen black were found to adsorb the reactant, acetophenone, and thus play a crucial role in achieving high catalytic performance in the CTH reaction.

    Original languageEnglish
    Pages (from-to)1580-1585
    Number of pages6
    JournalOrganic Process Research and Development
    Volume22
    Issue number12
    DOIs
    Publication statusPublished - 2018 Dec 21

    Keywords

    • Ru catalyst
    • carbon support
    • hydrogen transfer reaction
    • nanoparticles

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Organic Chemistry

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