In recent years, a broad range of nanocrystals have been synthesized in droplet-based microfluidic reactors which provide obvious advantages, such as accurate manipulation, better reproducibility and reliable automation. In this review, we initially introduce general concepts of droplet reactors followed by discussions of their main functional regions including droplet generation, mixing of reactants, reaction controlling, in situ monitoring, and reaction quenching. Subsequently, the enhanced mass and heat transport properties are discussed. Next, we focus on research frontiers including sequential multistep synthesis, intelligent synthesis, reliable scale-up synthesis, and interfacial synthesis. Finally, we end with an outlook on droplet reactors, especially highlighting some aspects such as large-scale production, the integrated process of synthesis and post-synthetic treatments, automated droplet reactors with in situ monitoring and optimizing algorithms, and rapidly developing strategies for interfacial synthesis.

中文翻译：

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液滴反应器中纳米晶体的可控合成

近年来，已经在基于液滴的微流体反应器中合成了多种纳米晶体，这些纳米晶体具有明显的优势，例如精确的操作，更好的可重复性和可靠的自动化。在这篇综述中，我们首先介绍了液滴反应器的一般概念，然后讨论了它们的主要功能区域，包括液滴的产生，反应物的混合，反应控制，原位反应。监测和反应淬灭。随后，讨论了增强的质量和热传递特性。接下来，我们重点研究前沿领域，包括顺序多步合成，智能合成，可靠的按比例放大合成和界面合成。最后，我们对液滴反应器进行了展望，特别强调了一些方面，例如大规模生产，合成和后合成处理的集成过程，具有原位监测和优化算法的自动液滴反应器以及快速开发界面的策略。合成。