Topochemical synthesis of phase-pure Mo2AlB2 through staging mechanism

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

doi:10.1039/c9cc03855h

Topochemical synthesis of phase-pure Mo₂AlB₂ through staging mechanism

Chem Commun (Camb). 2019 Aug 14;55(63):9295-9298. doi: 10.1039/c9cc03855h. Epub 2019 Jun 24.

Authors

Kijae Kim¹, Chi Chen¹, Daisuke Nishio-Hamane², Masashi Okubo³, Atsuo Yamada³

Affiliations

¹ Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. yamada@chemsys.t.u-tokyo.ac.jp.
² Institute for Solid State Physics, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8581, Japan.
³ Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. yamada@chemsys.t.u-tokyo.ac.jp and Elemental Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.

PMID: 31232419
DOI: 10.1039/c9cc03855h

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).