On the formulation of the material equilibrium condition for a dissolving solid nanoparticle |
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Authors: | Rusanov A I Shchekin A K |
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Institution: | Mendeleev Center, St. Petersburg State University, St. Petersburg 199034, Russia. rusanov@ar1047.spb.edu |
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Abstract: | Widely known Gibbs' relationship predicting a difference of chemical potentials in a small solid particle and in a surrounding fluid phase at equilibrium is shown to refer to a real or imaginary bulk phase inside the particle. A similar relationship derived for the real surface monolayer of a nanoparticle exhibits the equality of chemical potentials at equilibrium, which allows for experimental measurement of the surface chemical potential of a dissolving solid nanoparticle. |
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