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Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
11:54

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Published on: June 25, 2018

Nucleation rates in a new phenomenological model.

Roya Zandi1, David Reguera, Howard Reiss

  • 1Department of Chemistry and Biochemistry, University of California at Los Angeles, Los Angeles, California 90095-1569, USA. Roya.Zandi@ucr.edu

The Journal of Physical Chemistry. B
|November 3, 2006
PubMed
Summary

This study introduces a new nucleation rate theory within the EMLD-DNT model, incorporating cluster translation and exclusion. The theory accurately predicts 1-pentanol nucleation rates using only macroscopic thermodynamic properties.

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Area of Science:

  • Thermodynamics
  • Physical Chemistry
  • Materials Science

Background:

  • Classical nucleation theory often overlooks cluster translation and exclusion effects.
  • Accurate nucleation rate prediction is crucial for understanding phase transitions.

Purpose of the Study:

  • To develop a novel theory for evaluating nucleation rates within the Extended Modified London Dispersion-Density Functional Theory (EMLD-DNT) model.
  • To incorporate cluster translation and exclusion into nucleation theory.
  • To validate the theory's predictions against experimental data for 1-pentanol.

Main Methods:

  • Development of a new theoretical framework for nucleation rate evaluation.
  • Application of the EMLD-DNT model incorporating cluster dynamics.
  • Comparison of theoretical predictions with experimental data for 1-pentanol.

Main Results:

  • The new theory successfully predicts nucleation rates for 1-pentanol.
  • Excellent agreement was found between theoretical predictions and experimental results.
  • The model accurately predicts critical nucleus formation rates without requiring intermolecular potentials.

Conclusions:

  • The developed theory provides a more comprehensive approach to nucleation rate evaluation.
  • The EMLD-DNT model, with added cluster dynamics, offers a powerful tool for predicting nucleation phenomena.
  • Macroscopic thermodynamic properties are sufficient for accurate nucleation rate prediction, simplifying the process.