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A unified perspective on preferential solvation and adsorption based on inhomogeneous solvation theory

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  • Shimizu, Seishi
  • Matubayasi, Nobuyuki

Abstract

How cosolvents affects solvation has been revealed through the independent determination of solute-solvent and solute-cosolvent interactions guaranteed by the phase rule. Based on the first principles of inhomogeneous solvation theory, we present here a general matrix theory encompassing both preferential solvation and surface adsorption. The central role of the stability conditions, that govern how many excess numbers (surface excesses) are independently determinable, have been clarified from the first principles. The advantage of the inhomogeneous approach has been demonstrated to be in its ease in treating solvation and adsorption in a unified manner, while its disadvantage, for example in membrane dialysis experiments, can be overcome by the inhomogeneous–homogeneous conversion.

Suggested Citation

  • Shimizu, Seishi & Matubayasi, Nobuyuki, 2018. "A unified perspective on preferential solvation and adsorption based on inhomogeneous solvation theory," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 492(C), pages 1988-1996.
    • Handle: RePEc:eee:phsmap:v:492:y:2018:i:c:p:1988-1996
    DOI: 10.1016/j.physa.2017.11.113
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    Cited by:

    1. Shimizu, Seishi & Matubayasi, Nobuyuki, 2022. "Ensemble transformation in the fluctuation theory," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 585(C).
    2. Shimizu, Seishi & Matubayasi, Nobuyuki, 2021. "Implicit function theorem and Jacobians in solvation and adsorption," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 570(C).
    3. Shimizu, Seishi & Matubayasi, Nobuyuki, 2021. "Phase stability condition and liquid–liquid phase separation under mesoscale confinement," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 563(C).

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