Xu Yue, Qi Junlei, Ma Cong, He Qiyuan
Department of Materials Science, Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China.
Chem Asian J. 2024 May 2;19(9):e202301152. doi: 10.1002/asia.202301152. Epub 2024 Apr 5.
Wet-chemical synthesis refers to the bottom-up chemical synthesis in solution, which is among the most popular synthetic approaches towards functional two-dimensional (2D) materials. It offers several advantages, including cost-effectiveness, high yields,, precious control over the production process. As an emerging family of 2D materials, elemental 2D materials (Xenes) have shown great potential in various applications such as electronics, catalysts, biochemistry,, sensing technologies due to their exceptional/exotic properties such as large surface area, tunable band gap,, high carrier mobility. In this review, we provide a comprehensive overview of the current state-of-the-art in wet-chemical synthesis of Xenes including tellurene, bismuthene, antimonene, phosphorene,, arsenene. The current solvent compositions, process parameters utilized in wet-chemical synthesis, their effects on the thickness, stability of the resulting Xenes are also presented. Key factors considered involves ligands, precursors, surfactants, reaction time, temperature. Finally, we highlight recent advances, existing challenges in the current application of wet-chemical synthesis for Xenes production, provide perspectives on future improvement.
湿化学合成是指在溶液中自下而上的化学合成方法，它是制备功能性二维（2D）材料最常用的合成方法之一。它具有多种优点，包括成本效益高、产量高、对生产过程有精确控制。作为二维材料的一个新兴家族，单质二维材料（Xenes）由于其诸如大表面积、可调节带隙、高载流子迁移率等特殊/奇异性质，在电子学、催化剂、生物化学、传感技术等各种应用中显示出巨大潜力。在这篇综述中，我们全面概述了目前湿化学合成Xenes（包括碲烯、铋烯、锑烯、磷烯、砷烯）的最新进展。还介绍了当前湿化学合成中使用的溶剂组成、工艺参数，以及它们对所得Xenes的厚度、稳定性的影响。所考虑的关键因素包括配体、前驱体、表面活性剂、反应时间、温度。最后，我们强调了湿化学合成用于生产Xenes的当前应用中的最新进展、现有挑战，并对未来的改进提供了展望。
