A LIQUID-ELECTROLYTE VOLTAMMETRIC PROBE OF SUPERCONDUCTING OXOCUPRATES THROUGH THE TRANSITION-TEMPERATURE T-C

New free-solute ferrocene/ferricinium electrochemistry, in liquid elec trolyte on Tl-containing oxocuprate superconducting electrodes studied at several temperatures above and below T-c shows no discontinuities or abnormalities at the transition, in contrast with solid-electrolyte behaviour but possibly in accord with theoretical predictions regardi ng vibronic interactions or reorganisation barriers.