Sulfur Dioxide Gas Detection with Na2 SO 4 ‐ Li2 SO 4 ‐ Y 2 ( SO 4 ) 3 ‐ SiO2 Solid Electrolyte by a Solid Reference Electrode Method

Abstract

The electromotive force (EMF) measurement for a solid electrolyte was performed both with and solid reference electrodes. The measured EMF coincided well with the calculated EMF for a sulfur dioxide gas concentration from 30 ppm to 1% at 973 K. Good agreement between the measured and calculated EMF was also obtained for the gas content from 100 ppm to 1%, at 923 K with the electrode.