Double-cell carbon dioxide sensor based on Li-K molten carbonate with electrochemically-supplied CO2-O2 reference

Hiroshige Matsumoto; Makoto Kuribayashi; Koji Katahira; Hiroyasu Iwahara

doi:10.1016/S0925-4005(00)00701-2

Double-cell carbon dioxide sensor based on Li-K molten carbonate with electrochemically-supplied CO₂-O₂ reference

Hiroshige Matsumoto, Makoto Kuribayashi, Koji Katahira, Hiroyasu Iwahara

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

3 Citations (Scopus)

Abstract

A carbon dioxide sensor using molten carbonate electrolyte with double-cell structure was examined; one cell was employed for electrochemical pumping of CO₂ and O₂ from ambient atmosphere and the other was used for sensing of the ambient CO₂ with the pumped CO₂-O₂ mixture as a reference gas. The sensor was operated at 600 °C for the sensing of CO₂-containing air. By sending appropriate current, the pumping cell could provide CO₂ and O₂ at 2/3 and 1/3 of the atmospheric pressure, respectively. The sensing cell showed EMF with respect to the CO₂ and O₂ partial pressures against the pumped CO₂-O₂ reference gas. The sensor could determine the partial pressure of CO₂ in the examined range of 26 to 1×10⁴ Pa (260-100,000 ppm).

Original language	English
Pages (from-to)	157-162
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	73
Issue number	2-3
DOIs	https://doi.org/10.1016/S0925-4005(00)00701-2
Publication status	Published - Mar 10 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/S0925-4005(00)00701-2

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title = "Double-cell carbon dioxide sensor based on Li-K molten carbonate with electrochemically-supplied CO2-O2 reference",

abstract = "A carbon dioxide sensor using molten carbonate electrolyte with double-cell structure was examined; one cell was employed for electrochemical pumping of CO2 and O2 from ambient atmosphere and the other was used for sensing of the ambient CO2 with the pumped CO2-O2 mixture as a reference gas. The sensor was operated at 600 °C for the sensing of CO2-containing air. By sending appropriate current, the pumping cell could provide CO2 and O2 at 2/3 and 1/3 of the atmospheric pressure, respectively. The sensing cell showed EMF with respect to the CO2 and O2 partial pressures against the pumped CO2-O2 reference gas. The sensor could determine the partial pressure of CO2 in the examined range of 26 to 1×104 Pa (260-100,000 ppm).",

author = "Hiroshige Matsumoto and Makoto Kuribayashi and Koji Katahira and Hiroyasu Iwahara",

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T1 - Double-cell carbon dioxide sensor based on Li-K molten carbonate with electrochemically-supplied CO2-O2 reference

AU - Matsumoto, Hiroshige

AU - Kuribayashi, Makoto

AU - Katahira, Koji

AU - Iwahara, Hiroyasu

PY - 2001/3/10

Y1 - 2001/3/10

N2 - A carbon dioxide sensor using molten carbonate electrolyte with double-cell structure was examined; one cell was employed for electrochemical pumping of CO2 and O2 from ambient atmosphere and the other was used for sensing of the ambient CO2 with the pumped CO2-O2 mixture as a reference gas. The sensor was operated at 600 °C for the sensing of CO2-containing air. By sending appropriate current, the pumping cell could provide CO2 and O2 at 2/3 and 1/3 of the atmospheric pressure, respectively. The sensing cell showed EMF with respect to the CO2 and O2 partial pressures against the pumped CO2-O2 reference gas. The sensor could determine the partial pressure of CO2 in the examined range of 26 to 1×104 Pa (260-100,000 ppm).

AB - A carbon dioxide sensor using molten carbonate electrolyte with double-cell structure was examined; one cell was employed for electrochemical pumping of CO2 and O2 from ambient atmosphere and the other was used for sensing of the ambient CO2 with the pumped CO2-O2 mixture as a reference gas. The sensor was operated at 600 °C for the sensing of CO2-containing air. By sending appropriate current, the pumping cell could provide CO2 and O2 at 2/3 and 1/3 of the atmospheric pressure, respectively. The sensing cell showed EMF with respect to the CO2 and O2 partial pressures against the pumped CO2-O2 reference gas. The sensor could determine the partial pressure of CO2 in the examined range of 26 to 1×104 Pa (260-100,000 ppm).

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