Boridene: Two-dimensional Mo 4/3 B 2-x with ordered metal vacancies obtained by chemical exfoliation

作者：Jie Zhou, Justinas Pališaitis, Joseph Halim, Martin Dahlqvist, Quanzheng Tao, Ingemar R. Persson, Lars Hultman, Per O. Å. Persson, Johanna Rosén · 发表于：Science · 年份：2021 · DOI：10.1126/science.abf6239 · 被引用次数：331 · 研究领域：MXene and MAX Phase Materials、2D Materials and Applications、Graphene research and applications

Boridene: a 2D boride A range of two-dimensional (2D) materials, including graphene and hexagonal boron nitride, have been synthesized and studied because of the unusual properties that occur when one dimension becomes very small. MXenes are a family of materials made of layers of inorganic transition metal carbides and nitrides that are a few atoms thick and are manufactured by selective etching. Attempts to make similar boridene materials have been challenging because of the reactive nature of boride phases and because the parent materials tend to dissolve rather than selectively etch. Zhou et al . synthesized boridene in the form of single-layer 2D molybdenum boride sheets by selective etching in aqueous hydrofluoric acid to produce sheets with ordered metal vacancies, opening up an additional family of materials for study. —MSL