Carbon-Dioxide Sensor Using Solid Electrolytes with Zirconium-Phosphate Framework .2. Properties of the CO2 Gas Sensor Using Mg1.15Zr4P5.7Si0.3O24 as Electrolyte

Ikeda S; Kondo T; Kato S; Ito K; Nomura K; Fujita Y

Solid State Ionics, Vol.79, 354-357, 1995

DOI10.1016/0167-2738(95)00087-M Export Citation

Carbon-Dioxide Sensor Using Solid Electrolytes with Zirconium-Phosphate Framework .2. Properties of the CO2 Gas Sensor Using Mg1.15Zr4P5.7Si0.3O24 as Electrolyte

Ikeda S, Kondo T, Kato S, Ito K, Nomura K, Fujita Y

We report EMF type, all solid-state CO2 gas sensors using Mg2+ ion conductor in Mg1.15Zr4P5.7Si0.3O24, [MgZrPSiO], having a cell construction of Pt CO2, O-2 metal carbonate (Na2CO3 or K2CO3)parallel to solid electrolyte O-2, pt. The sensors showed Nernstian response to CO2 in pressure range between 0.5 and 60 kPa, at temperatures from 300 to 500 degrees C. A change in solid electrolyte from MgZr4(PO4)(6) to MgZrPSiO brought about a considerable reduction in response time.