文献类型：期刊文献

英文题名：An efficient microreactor with continuous serially connected micromixers for the synthesis of superparamagnetic magnetite nanoparticles

作者：Fan, Wenting[1];Zhao, Fang[1];Chen, Ming[1];Li, Jian[1];Guo, Xuhong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Int Joint Res Ctr Green Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：59

起止页码：85

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20232814389179);WOS:【SCI-EXPANDED(收录号:WOS:001025295800001)】；

基金：We gratefully thank the financial support from the National Natural Science Foundation of China (21808059) and the Funda-mental Research Funds for the Central Universities (JKA01221712) .

语种：英文

外文关键词：Microreactor; Continuous serially connected micromixers; Mixing; Nanoparticles

摘要：A new microreactor with continuous serially connected micromixers (CSCM) was tailored for the coprecipitation process to synthesize Fe3O4 nanoparticles. Numerical simulation reveals that the two types of CSCM microchannels (V-typed and U-typed) proposed in this work exhibited markedly better mixing performances than the Zigzag and capillary microchannels due to the promotion of Dean vortices. Complete mixing was achieved in the V-typed microchannel in 2.7 s at an inlet Reynolds number of 27. Fe3O4 nanoparticles synthesized in a planar glass microreactor with the V-typed microchannel, possessing an average size of 9.3 nm and exhibiting superparamagnetism, had obviously better dispersity and uniformity and higher crystallinity than those obtained in the capillary microreactor. The new CSCM microreactor developed in this work can act as a potent device to intensify the synthesis of similar inorganic nanoparticles via multistep chemical precipitation processes. & COPY; 2023 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.