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Investigation of a microfluidic approach to study very high nucleation rates involved in precipitation processes

Vitry, Youen and Teychené, Sébastien and Charton, Sophie and Lamadie, Fabrice and Biscans, Béatrice Investigation of a microfluidic approach to study very high nucleation rates involved in precipitation processes. (2015) Chemical Engineering Science, 133. 54-61. ISSN 0009-2509

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Official URL: https://doi.org/10.1016/j.ces.2015.01.062

Abstract

A microfluidic device has been specially developed to enable the study of fast nucleation kinetics involved in precipitation processes. This setup allows drops of two different reagents to be generated synchronously and to coalesce, and ensure the mixing of their reactants within few milliseconds. The results presented in this paper show that droplet based microfluidic devices are promising tools for studying high nucleation rates involved in precipitation processes. By using the stochastic nature of the nucleation process and the effect of the confinement on the induction time, a tailored microfluidic device has been used to measure nucleation rates as high as J=7.68×1013 m−3 s−1. Moreover, kinetic data deriving from nucleation experiments were found in good agreement with data deriving from “conventional” technics.

Item Type:Article
HAL Id:hal-01904656
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Loetitia MOYA
Deposited On:25 Oct 2018 09:08

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