Topochemical synthesis of phase-pure Mo2AlB2 through staging mechanism

Kijae Kim; Chi Chen; Daisuke Nishio-Hamane; Masashi Okubo; Atsuo Yamada

doi:10.1039/C9CC03855H

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Topochemical synthesis of phase-pure Mo₂AlB₂ through staging mechanism†

Kijae Kim,

‡^a Chi Chen,‡^a Daisuke Nishio-Hamane,^b Masashi Okubo^ac and Atsuo Yamada

*^ac

Author affiliations

* Corresponding authors

^a Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
E-mail: yamada@chemsys.t.u-tokyo.ac.jp

^b Institute for Solid State Physics, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8581, Japan

^c Elemental Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan

Abstract

Phase-pure Mo₂AlB₂ with a single Al layer, a possible precursor for MBenes, was synthesized topochemically by the removal of an Al layer from MoAlB. Ab initio calculations predicted the sequential staging transformation from MoAlB through Mo₄Al₃B₄ (stage II) to Mo₂AlB₂ (stage I).

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Article information

DOI: https://doi.org/10.1039/C9CC03855H
Article type: Communication
Submitted: 18 May 2019
Accepted: 18 Jun 2019
First published: 18 Jun 2019

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Chem. Commun., 2019,55, 9295-9298

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Topochemical synthesis of phase-pure Mo₂AlB₂ through staging mechanism

K. Kim, C. Chen, D. Nishio-Hamane, M. Okubo and A. Yamada, Chem. Commun., 2019, 55, 9295 DOI: 10.1039/C9CC03855H

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Chemical Communications