Xie Huaguang, Li Zhong, Cheng Liang, Haidry Azhar Ali, Tao Jiaqi, Xu Yi, Xu Kai, Ou Jian Zhen
Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
iScience. 2021 Dec 10;25(1):103598. doi: 10.1016/j.isci.2021.103598. eCollection 2022 Jan 21.
Atomically thin two-dimensional (2D) metal oxides exhibit unique optical, electrical, magnetic, and chemical properties, rendering them a bright application prospect in high-performance smart devices. Given the large variety of both layered and non-layered 2D metal oxides, the controllable synthesis is the critical prerequisite for enabling the exploration of their great potentials. In this review, recent progress in the synthesis of 2D metal oxides is summarized and categorized. Particularly, a brief overview of categories and crystal structures of 2D metal oxides is firstly introduced, followed by a critical discussion of various synthesis methods regarding the growth mechanisms, advantages, and limitations. Finally, the existing challenges are presented to provide possible future research directions regarding the synthesis of 2D metal oxides. This work can provide useful guidance on developing innovative approaches for producing both 2D layered and non-layered nanostructures and assist with the acceleration of the research of 2D metal oxides.
原子级薄的二维（2D）金属氧化物具有独特的光学、电学、磁学和化学性质，使其在高性能智能设备中具有广阔的应用前景。鉴于层状和非层状二维金属氧化物种类繁多，可控合成是挖掘其巨大潜力的关键前提。在这篇综述中，总结并分类了二维金属氧化物合成方面的最新进展。特别地，首先简要介绍了二维金属氧化物的类别和晶体结构，随后对各种合成方法的生长机制、优点和局限性进行了批判性讨论。最后，提出了现有挑战，以提供二维金属氧化物合成方面可能的未来研究方向。这项工作可为开发生产二维层状和非层状纳米结构的创新方法提供有用指导，并有助于加速二维金属氧化物的研究。
