Enhanced hydrogen chemisorption and spillover on non-metallic nickel subnanoclusters

Hirotomo Nishihara, Fumihide Ohtake, Alberto Castro-Muñiz, Hiroyuki Itoi, Masashi Ito, Yuuichiroh Hayasaka, Jun Maruyama, Junko N. Kondo, Ryota Osuga, Takashi Kyotani

    研究成果: Article査読

    6 被引用数 (Scopus)

    抄録

    Very fine Ni nanoparticles including subnanoclusters are dispersed in zeolite-templated carbon (ZTC), by thermal decomposition (573 K) of nickelocene pre-loaded on ZTC which functions as a high-surface area support. X-ray absorption fine structure reveals that the Ni species formed by the thermal decomposition is in a unique oxidized state. It is different from nickelocene, Ni metal, or any other inorganic Ni species. The unique Ni species can dissociatively adsorb H2, and enhance the following spillover even under ambient conditions. The spillover activity of the non-metallic Ni subnanoclusters is superior to that of Ni-metal nanoparticles and even comparable to that of Pt nanoparticles.

    本文言語English
    ページ(範囲)12523-12531
    ページ数9
    ジャーナルJournal of Materials Chemistry A
    6
    26
    DOI
    出版ステータスPublished - 2018

    ASJC Scopus subject areas

    • 化学 (全般)
    • 再生可能エネルギー、持続可能性、環境
    • 材料科学(全般)

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