Some evidence on the instability of a chromium-chromium(III) oxide electrode in electrochemical oxygen sensors at steelmaking temperatures

摘要

Anomalies were obsd. in measurements of emf. and elec. cond. measurements of solid oxide electrolyte cells involving Cr(s)-Cr2O3(s) electrodes.  Transformation in the system at ∼1653 K explains the anomalies mentioned above on the basis of measured temp. dependence of emf. and total and electronic conductivities of the cells.