Size of metal nanoparticles as a factor of their stability
N.Yu. Sdobnyakov, V.M. Samsonov, A.N. Bazulev
Tver State University
Abstract: Using available experimental data on evaporation rates for metal nanoparticles and shrinkage rates for vacancy pores, evaluations have been performed of the particle size ranges where the linear dependence σ = Kr between the surface tension σ and the particle radius r. The reliability intervals have been found for the proportionality coefficient K. The results obtained are compared to evaluations by E.N. Vitol (1992). On the bases of the results of these evaluations a conclusion has been confirmed that a thermodynamic stability condition obtained before is fulfilled for nanoparticles of all metals considered in the paper.
Keywords: metal nanoparticles, Rusanov’s formula, stability, evaporation of nanoparticles, shrinkage of vacancy pores.
Sdobnyakov, N.Yu. Size of metal nanoparticles as a factor of their stability / N.Yu. Sdobnyakov, V.M. Samsonov, A.N. Bazulev // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials: Interuniversity collection of proceedings / Ed. by V.M. Samsonov, N.Yu. Sdobnyakov. – Tver: TSU, 2018. – I. 10. – P. 576-583.
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