THERMODYNAMIC EQUILIBRIA AND KINETIC REVERSIBILITY OF THE SOLID ELECTROLYTE ELECTRON CONDUCTOR/GAS BOUNDARY AT LOW-TEMPERATURE/

The relation of the concentration dependence of the emf of low-tempera ture potentiometric gas sensors to the adsorption isotherms of the det ected species is considered on the basis of the literature data and th e experimental results of the,authors. The causes for the deviation of measured emf of the sensors from their theoretical values are discuss ed. The conditions for the formation of electrochemical products and t heir elimination from the triphase boundaries of solid electrolyte/ele ctron conductor/gas are also discussed.