Application de la microscopie electronique, des mesures d'impedance et des radiotraceurs a l'etude du comportement de l'interface Ag+/Ag monocristallin
Abstract
The interface Ag/Ag+ has been studied using several techniques: radiotracers, current—voltage curves and impedance measurements over a wide frequency range. Surfaces of the specimen are observed after the electrodeposition or anodic dissolution by means of transmission and scanning electron microscopy. The silver (100), (110) and (111) surfaces were previously chemically polished. The silver—silver ion exchange has been shown to be dependent on anions adsorption. The behaviour of silver electrodes in AgNO3 solutions is described by an appropriate model.