One droplet reaction for synthesis of multi-sized nanoparticles

被引:0
作者
Bingda Chen
Feifei Qin
Meng Su
Daixi Xie
Zeying Zhang
Qi Pan
Huadong Wang
Xu Yang
Sisi Chen
Jingwei Huang
Dominique Derome
Jan Carmeliet
Yanlin Song
机构
[1] Beijing National Laboratory for Molecular Sciences (BNLMS),Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing Engineering Research Center of Nanomaterials for Green Printing Technology
[2] University of Chinese Academy of Sciences,Chair of Building Physics, Department of Mechanical and Process Engineering
[3] ETH Zürich (Swiss Federal Institute of Technology in Zürich),Department of Civil and Building Engineering
[4] Université de Sherbrooke,undefined
来源
Nano Research | 2023年 / 16卷
关键词
gas—liquid interface; accumulation effect; one droplet reaction; multi-sized nanoparticles;
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摘要
Reaction kinetics of nanoparticles can be controlled by tuning the Peclet number (Pe) as it is an essential parameter in synthesis of multi-sized nanoparticles. Herein, we propose to implement a self-driven multi-dimension microchannels reactor (MMR) for the one droplet synthesis of multi-sized nanoparticles. By carefully controlling the Pe at the gas—liquid interface, the newly formed seed crystals selectively accumulate and grow to a specific size. By the combination of microchannels of different widths and lengths, one droplet reaction in the same apparatus achieves the synchronous synthesis of diverse nanoparticles. MMR enables precise control of nanoparticle diameter at 5 nm precision in the range of 10–110 nm. The use of MMR can be extended to the synthesis of uniform Ag, Au, Pt, and Pd nanoparticles, opening towards the production and engineering of nanostructured materials. This approach gives the chance to regulate the accumulation probability for precise synthesis of nanoparticles with different diameters.
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页码:5850 / 5856
页数:6
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