An efficient microreactor with continuous serially connected micromixers for the synthesis of superparamagnetic magnetite nanoparticles

Wenting Fan; Fang Zhao; Ming Chen; Jian Li; Xuhong Guo

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An efficient microreactor with continuous serially connected micromixers for the synthesis of superparamagnetic magnetite nanoparticles

Full Length Article | Updated：2026-01-06

- An efficient microreactor with continuous serially connected micromixers for the synthesis of superparamagnetic magnetite nanoparticles
- Chinese Journal of Chemical Engineering Vol. 59, Issue 7, Pages: 85-91(2023)
- Affiliations：
  
  1. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology,Shanghai,China,200237
  2. International Joint Research Center of Green Energy Chemical Engineering,Shanghai,China,200237
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2023
- Accepted：
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Wenting Fan, Fang Zhao, Ming Chen, Jian Li, Xuhong Guo. An efficient microreactor with continuous serially connected micromixers for the synthesis of superparamagnetic magnetite nanoparticles[J]. Chinese Journal of Chemical Engineering, 2023, 59(7): 85-91.
DOI：

Wenting Fan, Fang Zhao, Ming Chen, Jian Li, Xuhong Guo. An efficient microreactor with continuous serially connected micromixers for the synthesis of superparamagnetic magnetite nanoparticles[J]. Chinese Journal of Chemical Engineering, 2023, 59(7): 85-91. DOI：

摘要

Abstract

A new microreactor with continuous serially connected micromixers (CSCM) was tailored for the coprecipitation process to synthesize Fe

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. Fe

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.

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