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Issue 26, 2018
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Enhanced hydrogen chemisorption and spillover on non-metallic nickel subnanoclusters

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Abstract

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.

Graphical abstract: Enhanced hydrogen chemisorption and spillover on non-metallic nickel subnanoclusters

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Publication details

The article was received on 19 Mar 2018, accepted on 26 May 2018 and first published on 30 May 2018


Article type: Paper
DOI: 10.1039/C8TA02561D
Citation: J. Mater. Chem. A, 2018,6, 12523-12531
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    Enhanced hydrogen chemisorption and spillover on non-metallic nickel subnanoclusters

    H. Nishihara, F. Ohtake, A. Castro-Muñiz, H. Itoi, M. Ito, Y. Hayasaka, J. Maruyama, J. N. Kondo, R. Osuga and T. Kyotani, J. Mater. Chem. A, 2018, 6, 12523
    DOI: 10.1039/C8TA02561D

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