Rosenkranz, C.C.RosenkranzJanek, JürgenJürgenJanek2023-06-122005-09-122023-06-121995http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-23695https://jlupub.ub.uni-giessen.de/handle/jlupub/16715http://dx.doi.org/10.22029/jlupub-16093Two basic experiments for the measurement of local (electro-)chemical potentials in crystalline mixed conductors, which are exposed to external forces, are reported, (a) The profile of the chemical potential of silver metal in a Wagner-Hebb polarization cell Ag ¦AgBr ¦Pt is measured by means of local potential probes. Deviations from calculated profiles are discussed in terms of either a possible electronic overvoltage at the anodic interface AgBr ¦ Pt or a change of the defect structure of AgBr in the region near the anode, (b) In a second experiment, the ionic overvoltage at an interface AgBr ¦ AgCl is determined, again by means of local potential probes.enIn Copyrightchemical potential profilemixed conductorsovervoltageddc:540