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Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
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Multicomponent condensation on the nucleation stage.

Anatoly E Kuchma1, Alexander K Shchekin1

  • 1St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia.

The Journal of Chemical Physics
|February 10, 2019
PubMed
Summary
This summary is machine-generated.

This study analyzes supercritical droplet evolution during vapor condensation. It extends mean-field theory to model multicomponent nucleation and droplet growth in a closed system.

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Area of Science:

  • Physical Chemistry
  • Chemical Engineering
  • Thermodynamics

Background:

  • Droplet formation and growth are critical in atmospheric and industrial processes.
  • Previous work focused on single-component systems or gas bubble nucleation.
  • Understanding multicomponent nucleation requires advanced theoretical models.

Purpose of the Study:

  • To extend existing mean-field theory to model multicomponent nucleation and droplet growth.
  • To analyze the evolution of supercritical droplets in a closed system with multiple condensing vapors.
  • To determine vapor supersaturations and droplet size distributions over time.

Main Methods:

  • Extension of mean-field theory for nucleation stage.
  • Modeling of multicomponent nucleation and droplet growth under isothermal conditions.
  • Analysis of a closed system with a fixed amount of condensing species.

Main Results:

  • A theoretical approach was developed to predict vapor supersaturations.
  • The distribution of supercritical droplet sizes as a function of time was determined.
  • The model was illustrated using an ideal multicomponent solution.

Conclusions:

  • The extended mean-field theory accurately describes multicomponent droplet nucleation and growth.
  • The proposed approach provides insights into the dynamics of droplet ensembles.
  • This work advances the understanding of phase transitions in multicomponent systems.