Abstract
For last decades, important research activities have led to the improvement of electrochemical devices for energy production. Our last researches lead us to the development of a specific experimental setup which allows the determination of the oxygen activity of the membrane surfaces and in gas. These measurements of oxygen activities at the membranes surfaces give us essential data for the better understanding of the membrane surface oxygen exchange mechanisms corresponding to the determining rate step of oxygen transport through the dense ceramic membranes.
Cuvinte cheie
ceramic membrane
perovskite
mixed conductor
oxygen semi-permeation
surface exchange mechanism
bulk diffusion
coating
synthesis.