Weak specific adsorption of ionsстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Автор:
Damaskin B.B.
Журнал:
Journal of Electroanalytical Chemistry
Том:
65
Номер:
2
Год издания:
1975
Издательство:
Elsevier Sequoia
Местоположение издательства:
Switzerland
Первая страница:
799
Последняя страница:
814
DOI:
10.1016/0368-1874(75)85159-8
Аннотация:
It is shown that the weak specific adsorption of ions not involving the recharging of the electrode surface is characterized by the following unusual features: practical absence of any shift of p.z.c.; a very small discrepancy between the experimental differential capacity curves and similar curves calculated under the assumption that specific adsorption is absent (q1 = 0); insensitivity of the total surface excess of cations to their distribution between the dense and diffuse layers; practical independence of q1 of temperature and the bulk concentration of binary electrolyte; practical coincidence of c.t.p. calculated for different concentrations of surface-active supporting electrolyte assuming q1 = 0. It is also shown on the basis of the experimental data for the system {mc CsCl + (1 - m)c LiCl} that the main fraction of the effective charge, determined by the mixed electrolyte method of Hurwitz-Parsons, results from the true specific adsorption of Cs+ cations at the Hg/H2O interface and only a small fraction of this charge (≤20%) can be associated with different positions of the o.H.p. for Li+ and Cs+ ions. © 1975
Добавил в систему:
Дамаскин Борис Борисович