Electrical double-layer structure on metals of the gallium subgroup in various solvents that takes into account the metal electronic configurationстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:Gallium metals in various solvents are used to demonstrate that the Amokrane-Badiali model is applicable for interpreting the dependence of the inner-layer capacitance of the electrical double layer on the electrode charge only in the absence of specific interaction of the metal with the solvent, whereas, chemisorption interaction of the metal with the solvent leads to internal contradictions within the framework of this model. An attempt is made to describe contact of the metal with the solvent in terms of concepts that take into account the fact that a change in the contribution of the metal to the experimentally determined inner-layer capacitance of the electrical double layer, which takes place on going from one metal to another, is two-pronged. On one hand, it involves a component that depends on the electrode charge and the chemisorption interaction of the metal with the solvent. On the other, it incorporates a constant value connected with the degree to which electron density of the metals spreads out beyond the ionic lattice. Peculiarities of chemisorption interaction of the metal with the solvent derived in the framework of these concepts are shown to correlate with donor-acceptor notions on the nature of the specific interaction.