Simulation, design and proof-of-concept of a two-stage continuous hydrothermal flow synthesis reactor for synthesis of functionalized nano-sized inorganic composite materials

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Abstract

Computational fluid dynamics simulations were employed to evaluate several mixer geometries for a novel two-stage continuous hydrothermal flow synthesis reactor. The addition of a second stage holds the promise of allowing the synthesis of functionalized nano-materials as for example core-shell or decorated particles. Based on the simulation results, a reactor system employing a confined jet mixer in the first and a counter-flow mixer in the second stage was designed and built. The two-stage functionality and synthesis capacity is shown on the example of single- and two-stage syntheses of pure and mixed-phase NiO and YSZ particles.
Original languageEnglish
JournalJournal of Supercritical Fluids
Volume117
Pages (from-to)1-12
Number of pages12
ISSN0896-8446
DOIs
Publication statusPublished - 2016

Keywords

  • Computational fluid dynamics
  • Continuous synthesis
  • Hydrothermal
  • Nanoparticles
  • Reactor design
  • Supercritical water

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