Solid-State Sensor for Sulfur Oxides Based on Stabilized Zirconia and Metal Sulphate
- 1 April 1992
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 21 (4) , 635-638
- https://doi.org/10.1246/cl.1992.635
Abstract
Electrochemical cells using MgO-stabilized zirconia tube coated with metal sulphates were found to exhibit fairly good sensing properties to 20–200 ppm SO2 in air at 650–800 °C. With various sulphates such as Li2SO4 and Na2SO4, EMF responses to SO2 followed Nernst’s equations for a 2-electron reduction of SO2. With Li2SO4-CaSO4 (6:4 in molar ratio), 90% response- and 90% recovery-times were 12 s and 2.5 min, respectively, for 130 ppm SO2 at 800 °C.Keywords
This publication has 10 references indexed in Scilit:
- Calciumβ″-alumina and Nasicon electrolytes in galvanic cells with solid reference electrodes for detection of sulphur oxides in gasesJournal of Applied Electrochemistry, 1991
- A new SO2/SO3 sensor with Ag2SO4-based electrolyteSolid State Ionics, 1990
- An SOx (x = 2, 3) sensor using β-alumina/Na2SO4 coupleSensors and Actuators, 1989
- The electrical and thermal properties of sodium sulfate mixed with lanthanum sulfate and aluminum oxideSolid State Ionics, 1986
- Electrical conductivity of Li2SO4Ag2SO4 solid electrolytesSolid State Ionics, 1986
- Potentiometric sensor for sulfur oxides using NASICON as a solid electrolyteSolid State Ionics, 1985
- Applicability of sodium sulfate as a solid electrolyte for a sulfur oxides sensorSolid State Ionics, 1984
- Progress in the Development of Solid‐State Sulfate Detectors for Sulfur OxidesJournal of the Electrochemical Society, 1981
- A Solid‐State Probe for SO 2 / SO 3 Based on Na2 SO 4 ‐ I ElectrolyteJournal of the Electrochemical Society, 1979
- Solid-State Detectors for the Potentiometric Determination of Gaseous OxidesJournal of the Electrochemical Society, 1977