Solid Electrolyte Carbon Dioxide Sensor Using Sodium-Ion Conductor and Li2CO3-BaCO3 Electrode
- 1 February 1992
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 31 (2B) , L197-199
- https://doi.org/10.1143/jjap.31.l197
Abstract
A sodium-ion conductor (Na3Zr2Si2PO12: NASICON)-based CO2 sensor using a Li2CO3-BaCO3 electrode responded very well to CO2 in air over a wide temperature range of 270-600°C. The sensor responses, electromotive force (EMF), to varying partial pressure of CO2(P CO2 ) were in accordace with a 2-electron reaction of CO2. On the other hand, the sensor response to a fixed P CO2 (2×10-3 atm) was almost independent of partial pressure of O2(P O2 ) at temperatures above 450°C, while at 305°C and below, it depended on P O2 in a manner similar to a 2-electron reactionof O2. Thus, two types of sensing electrode reactions were indicated to occur depending on working temperature.Keywords
This publication has 10 references indexed in Scilit:
- Solid Electrolyte CO2 Sensor Using NASICON and Li-based Binary Carbonate ElectrodeChemistry Letters, 1991
- Solid Electrolyte CO2 Sensor Using Binary Carbonate ElectrodeChemistry Letters, 1990
- X-Ray Fhotoelectron Spectroscopic Studies of Lanthanum Oxide Based Oxidative Coupling of Methane CatalystsChemistry Letters, 1990
- A Carbon Dioxide Gas Sensor Probe Based on a Lithium Ionic ConductorChemistry Letters, 1990
- Recent developments of the sensors for carbon oxides using solid electrolytesSolid State Ionics, 1988
- Electromotive force of a CO_CO2 sensor in CO_CO2_H2_H2O atmospheres and simultaneous determination of partial pressures of CO and CO2Solid State Ionics, 1987
- K 2 CO 3 Solid Electrolyte as a CO 2 Probe: Decomposition Measurements of CaCO3Journal of the Electrochemical Society, 1984
- Electrochemical studies of molten sodium carbonateInorganic Chemistry, 1983
- Alkali-metal peroxocarbonates, M2[CO3]·nH2O2, M2[C2O6], M[HCO4]·nH2O, and Li2[CO4]·H2OJ. Chem. Soc., Dalton Trans., 1980
- Solid-State Detectors for the Potentiometric Determination of Gaseous OxidesJournal of the Electrochemical Society, 1977