Li Xiaoxu, Nong Xianyu, Zhu Chenghui, Gao Xufeng, Chen Huan, Yuan Xu, Xing Dong, Liu Lu, Liang Chiyu, Zang Duyang, Zhang Xinxing
College of Chemistry, Frontiers Science Center for New Organic Matter, State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Renewable Energy Conversion and Storage Center (ReCAST), Nankai University, Tianjin, 300071, China.
Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China.
J Am Chem Soc. 2024 Oct 30;146(43):29267-29271. doi: 10.1021/jacs.4c07712. Epub 2024 Oct 18.
Microdroplet chemistry is now well-known to be able to remarkably accelerate otherwise slow reactions and trigger otherwise impossible reactions. The uniqueness of the microdroplet is attributable to either the air-water interface or solid-liquid interface, depending on the medium that the microdroplet is in contact with. To date, the importance of the solid-liquid interface might have been confirmed, but the contribution from the air-water interface seems to be elusive due to the lack of method for generating contactless microdroplets. In this study, we used a droplet atomization method with acoustic levitation. Upon manipulation of the acoustic field, the levitated parent droplet can be further atomized into progeny microdroplets. With this method, only the air-water interface was present, and a large variety of reactions were successfully tested. We anticipate that this study can be an advance toward the understanding of the air-water interfacial processes of microdroplet chemistry.
微滴化学如今已广为人知，它能够显著加速原本缓慢的反应，并引发原本不可能发生的反应。微滴的独特性归因于气 - 水界面或固 - 液界面，这取决于微滴所接触的介质。迄今为止，固 - 液界面的重要性或许已得到证实，但由于缺乏产生非接触微滴的方法，气 - 水界面的贡献似乎难以捉摸。在本研究中，我们采用了声悬浮液滴雾化方法。通过操纵声场，悬浮的母液滴可进一步雾化成子微滴。利用这种方法，仅存在气 - 水界面，并且成功测试了多种反应。我们预计这项研究能够推动对微滴化学气 - 水界面过程的理解。
