Abstract Efficient exfoliation of layered materials has attracted considerable attention in various applications due to their superior photoelectric, physical and chemical properties. Here, we report a universal, rapid approach to prepare the two-dimensional (2D) nanosheets and zero-dimensional (0D) quantum dots (QDs) using a simple cryo-mediation liquid phase exfoliation of layered materials (graphite, MoS2, WS2). The QDs decorated nanosheets 0D/2D homostructure can be subsequently formed by the self-assembly of the as-exfoliated QDs and nanosheets. The unique structural properties of the mono- or few-layer mesoporous nanosheets interspersed with QDs can expose abundant active edge sites as well as improve the conductivity, which exhibits excellent activity and stability towards electrocatalytic hydrogen evolution reaction (HER). This work offers a powerful methodology to prepare 2D homostructures from a variety of layered materials.

中文翻译：

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用于增强析氢的 0D/2D 同质结构的自组装

摘要 层状材料的高效剥离由于其优异的光电、物理和化学性能而在各种应用中引起了广泛关注。在这里，我们报告了一种通用、快速的方法来制备二维 (2D) 纳米片和零维 (0D) 量子点 (QD)，使用层状材料（石墨、MoS2、WS2）的简单低温介导液相剥离. 量子点装饰的纳米片 0D/2D 同质结构随后可以通过剥离后的量子点和纳米片的自组装形成。散布有量子点的单层或几层介孔纳米片的独特结构性质可以暴露出丰富的活性边缘位点并提高导电性，这对电催化析氢反应 (HER) 表现出优异的活性和稳定性。