A “macroscopic” approach to the adsorption potential shift at the air—solution interface

Changes in surface potential of water Δχ w upon adsorption of organic solvents were calculated by means of the Helmholtz equation with “macroscopic” parameters. Reasons for this choice are illustrated. The results indicate good qualitative and satisfactory quantitative agreement with the experimenta...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 1992-07, Vol.329 (1), p.25-38
Main Authors: Koczorowski, Z., Kurowski, S., Trasatti, S.
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
Gas-liquid interface and liquid-liquid interface
General and physical chemistry
Surface physical chemistry
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Summary:Changes in surface potential of water Δχ w upon adsorption of organic solvents were calculated by means of the Helmholtz equation with “macroscopic” parameters. Reasons for this choice are illustrated. The results indicate good qualitative and satisfactory quantitative agreement with the experimental data. The choice of the various parameters is discussed. The form of the dependence of Δχ w on the adsorbate concentration indicates the presence of lateral interactions between adsorbate and water whose description in terms of macroscopic parameters is under investigation.
ISSN:1572-6657
0022-0728
1873-2569
DOI:10.1016/0022-0728(92)80206-J