Structure of electrical double layer on liquid Pb-Ga alloy in aqueous electrolytes

Emets, V.V.; Damaskin, B.B.; Bagotskaya, I.A.

Авторы: Emets V.V., Damaskin B.B., Bagotskaya I.A.
Журнал: Russian Journal of Electrochemistry
Том: 37
Номер: 9
Год издания: 2001
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 881
Последняя страница: 888
DOI: 10.1023/A:1011928023545
Аннотация: A new electrode, which is a liquid Pb-Ga alloy (0.06 at. % Pb), is developed and studied. It is shown that the alloy’s double-layer characteristics dramatically differ from characteristics of a Ga electrode and are practically identical to characteristics of a Pb electrode. Hence, the Pb-Ga electrode in fact models electrochemical properties of a liquid Pb electrode. It is established that the "metallic" capacitance of the Pb-Ga electrode occupies an intermediate position between values of metallic capacitance of Ga and Hg electrodes, provided the metal-water chemisorption interaction is absent and the electrode charge is fixed. Hydrophilicity of the Pb-Ga electrode is substantially lower than hydrophilicity of a Ga electrode and coincides with hydrophilicity of an Hg electrode. It is shown that In-Ga, Cd-Ga, and Pb-Ga electrodes have close values of the electrochemical work function, and the chemisorption potential drop of the solvent in them increases in the series Pb-Ga < In-Ga < Cd-Ga with decreasing distance of closest approach of water molecules to the ionic core of the metal. The absorbability of anions at the Pb-Ga electrode increases in the series BF 4 - = SO 4 2- < Cl - < Br - < I -. © 2001 MAIK "Nauka/Interperiodica".
Добавил в систему: Дамаскин Борис Борисович

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Structure of electrical double layer on liquid Pb-Ga alloy in aqueous electrolytesстатья