Interpretation of the impedance comprising negative capacitance and constant phase elements on iron electrode in weakly acidic mediaстатья
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Дата последнего поиска статьи во внешних источниках: 7 декабря 2017 г.
Авторы:
Elkin V.V.,
Marshakov A.I. ,
Rybkina A.A. ,
Maleeva M.A.
Журнал:
Russian Journal of Electrochemistry
Том:
47
Номер:
2
Год издания:
2011
Издательство:
Maik Nauka/Interperiodica Publishing
Местоположение издательства:
Russian Federation
Первая страница:
136
Последняя страница:
146
DOI:
10.1134/S1023193511020054
Аннотация:
The negative low-frequency capacitance that appears in interpretations of impedance of the iron electrode in weakly acidic solutions is shown to arise in the case of interaction of two consecutive nonequi-librium flows that constitute a two-stage anodic faradaic process of intermediate adsorption in the prepassi-vation potential range. The low-frequency capacitance is negative throughout a potential range where the logarithm of rate constant vs. potential (logk vs. E) dependence has the higher slope for the limiting stage. The low-frequency capacitance becomes positive at higher anodic potentials and for the other limiting stage. © Pleiades Publishing, Ltd., 2011.
Добавил в систему:
Маршаков Андрей Игоревич