Application of Srβ-alumina solid electrolyte to a CO2 gas sensor

Takashi Goto; Gang He; Takayuki Narushima; Yasutaka Iguchi

doi:10.1016/S0167-2738(02)00681-1

Application of Srβ-alumina solid electrolyte to a CO₂ gas sensor

Takashi Goto, Gang He, Takayuki Narushima, Yasutaka Iguchi

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Srβ-alumina was synthesized in a SrO-MgO-Al₂O₃ system by solid state sintering, and the electrical conductivity was measured at 873-1673 K by impedance spectroscopy. The oxygen concentration cell method was applied to measure the ionic transport number. The ionic transport numbers were close to 1 in the temperature range between 1200 and 1600 K. Open- and closed-type CO₂ gas sensors were constructed using the Srβ-alumina solid electrolyte and a Pt-SrCO₃ auxiliary electrode. The CO₂ sensors responded well to the changes of CO₂ partial pressures at temperatures of 1073-1373 K.

Original language	English
Pages (from-to)	329-336
Number of pages	8
Journal	Solid State Ionics
Volume	156
Issue number	3-4
DOIs	https://doi.org/10.1016/S0167-2738(02)00681-1
Publication status	Published - 2003 Jan 1

Keywords

A.c. impedance spectroscopy
CO gas sensor
Open-type cell
Strontium β-alumina
Transport number

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/S0167-2738(02)00681-1

Cite this

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title = "Application of Srβ-alumina solid electrolyte to a CO2 gas sensor",

abstract = "Srβ-alumina was synthesized in a SrO-MgO-Al2O3 system by solid state sintering, and the electrical conductivity was measured at 873-1673 K by impedance spectroscopy. The oxygen concentration cell method was applied to measure the ionic transport number. The ionic transport numbers were close to 1 in the temperature range between 1200 and 1600 K. Open- and closed-type CO2 gas sensors were constructed using the Srβ-alumina solid electrolyte and a Pt-SrCO3 auxiliary electrode. The CO2 sensors responded well to the changes of CO2 partial pressures at temperatures of 1073-1373 K.",

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AU - Goto, Takashi

AU - He, Gang

AU - Narushima, Takayuki

AU - Iguchi, Yasutaka

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Y1 - 2003/1/1

N2 - Srβ-alumina was synthesized in a SrO-MgO-Al2O3 system by solid state sintering, and the electrical conductivity was measured at 873-1673 K by impedance spectroscopy. The oxygen concentration cell method was applied to measure the ionic transport number. The ionic transport numbers were close to 1 in the temperature range between 1200 and 1600 K. Open- and closed-type CO2 gas sensors were constructed using the Srβ-alumina solid electrolyte and a Pt-SrCO3 auxiliary electrode. The CO2 sensors responded well to the changes of CO2 partial pressures at temperatures of 1073-1373 K.

AB - Srβ-alumina was synthesized in a SrO-MgO-Al2O3 system by solid state sintering, and the electrical conductivity was measured at 873-1673 K by impedance spectroscopy. The oxygen concentration cell method was applied to measure the ionic transport number. The ionic transport numbers were close to 1 in the temperature range between 1200 and 1600 K. Open- and closed-type CO2 gas sensors were constructed using the Srβ-alumina solid electrolyte and a Pt-SrCO3 auxiliary electrode. The CO2 sensors responded well to the changes of CO2 partial pressures at temperatures of 1073-1373 K.

KW - A.c. impedance spectroscopy

KW - CO gas sensor

KW - Open-type cell

KW - Strontium β-alumina

KW - Transport number

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