Voltammetry with a fluoride-selective electrode with solid-phase referencesystem

Experimental results obtained in a study of the voltammetric response of an all-solid fluoride-selective electrode based on LaF3 (Eu2+ 0.8 mol %), LaF 3 (Sr2+ 5 mol %) and CeF3 (Sr2+ 5 mol %) single crystals brought in contact with Ag, Bi, and Sn metal samples are presented. The method of cathodic in version voltammetry was applied to study the reduction of La3+ and Ce3+-cat ions from the rigid sublattice of solid electrolytes, which determines the threshold of the electrochemical stability of a membrane. Anodic inversion voltammetry was used to investigate the characteristics of solid-phase gene ration of metal fluorides at the interface between the fluoride-selective e lectrode and metals.