Direct measurement of the double layer capacity at the silver iodide-aqueous electrolyte interface

Abstract

The double layer capacity at the AgI/KNO3 solution interface was determined directly with the aid of an alternating current in the concentration range of 5×10−4 to 1 M.

To avoid contamination of the electrode surface a new cell construction was developed and the preparation of the electrodes and solutions was improved.

The results were interpreted in terms of the Gouy, Chapman, Stern theory.