Analogous to carbide and nitride MXenes, MBenes are two-dimensional (2D) metal borides derived from heterolayered MAB phases (M = transition metal, A = aluminum, B = boron), and are predicted materials for energy storage applications. However, to date, the selective extraction methods used to synthesize MXenes from MAX phases have not proven translatable to boride systems. Thus, the synthesis of MBenes is mostly theoretical in nature, but recent computational and experimental studies point to new MAB-phase precursors that may prove more amenable to selective extraction. Accordingly, this presentation details unconventional synthetic strategies developed to target predicted MBene precursors and their dimensionally-reduced derivatives.

Engineering metastable precursors of two-dimensional MBenes

2019 Fall National Meeting

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