Abstract
Electrical double-layer capacitance measurements of six solid metal electrodes, platinum gold, copper, iron, nickel and silver, in aqueous solutions of potassium chloride, bromide, iodide, nitrate and sodium sulphate were carried out with an impedance bridge, under high purity conditions. The constant capacitance obtained with these metal/solution interfaces are interpreted on the basis of Devanathan's model of the electrical double laeyr as due to the solvent contribution only, uninfluenced by specific adsorption effects in the potential range investigated.
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