Tang Hailong, He Yanjie, Li Bo, Jung Jaehan, Zhang Chuchu, Liu Xiaobo, Lin Zhiqun
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Nanoscale. 2015 Jun 7;7(21):9731-7. doi: 10.1039/c5nr01492a. Epub 2015 May 11.
Recent research has witnessed rapid advances in synthesis of nanocrystals, which has led to the development of a large variety of approaches for producing nanocrystals with controlled dimensions. However, most of these techniques lack the high-throughput production. Herein, we report on a viable and robust strategy based on an inert-gas-driven microflow reactor for continuous crafting of high-quality colloidal nanocrystals. With the judicious introduction of the inert-gas driven capability, the microflow reactor provides an attractive platform for continuous production of colloidal nanocrystals in large quantities, including easily-oxidized nanocrystals. The as-synthesized nanocrystals possessed a uniform size and shape. Intriguingly, the size of nanocrystals can be effectively tailored by varying the flow rate and the precursor concentration. We envision that the microflow reactor strategy is general and offers easy access to a wide range of scalable nanocrystals for potential applications in sensors, optics, optoelectronics, solar energy conversion, batteries, photocatalysis, and electronic devices.
最近的研究表明，纳米晶体的合成取得了快速进展，这导致了多种生产尺寸可控纳米晶体方法的发展。然而，这些技术大多缺乏高通量生产能力。在此，我们报告一种基于惰性气体驱动微流反应器的可行且稳健的策略，用于连续制备高质量的胶体纳米晶体。通过明智地引入惰性气体驱动能力，微流反应器为大量连续生产胶体纳米晶体提供了一个有吸引力的平台，包括易氧化的纳米晶体。所合成的纳米晶体具有均匀的尺寸和形状。有趣的是，通过改变流速和前驱体浓度，可以有效地调整纳米晶体的尺寸。我们设想，微流反应器策略具有通用性，能够方便地制备出多种可扩展的纳米晶体，有望应用于传感器、光学、光电子学、太阳能转换、电池、光催化和电子器件等领域。
