4.6 Article

One-Step Synthesis of Spin Crossover Nanoparticles Using Flow Chemistry and Supercritical CO2

Journal

CHEMISTRY-A EUROPEAN JOURNAL
Volume 26, Issue 69, Pages 16286-16290

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202002322

Keywords

flow chemistry; nanoparticles; spin crossover; supercritical CO2

Funding

  1. University of Bordeaux
  2. CNRS
  3. ANR FlowSwitch [2019-CE07-0022-01]
  4. Region Nouvelle Aquitaine
  5. ADEME agency through the ISOCEL project

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Switchable materials are increasingly considered for implementation in devices or multifunctional composites leading to a strong need in terms of reliable synthetic productions of well-defined objects. Here, an innovative and robust template-free continuous process was developed to synthesize nanoparticles of a switchable coordination polymer, including the use of supercritical CO2, aiming at both quenching the particle growth and drying the powder. This all-in-one process offers a 12-fold size reduction in a few minutes while maintaining the switching properties of the selected spin crossover coordination polymer.

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