Capacitive-type gas sensor for the selective detection of carbon dioxide

Tatsumi Ishihara; Kazuhiro Kometani; Yukako Mizuhara; Yusaku Takita

doi:10.1016/0925-4005(93)85429-E

Capacitive-type gas sensor for the selective detection of carbon dioxide

Tatsumi Ishihara, Kazuhiro Kometani, Yukako Mizuhara, Yusaku Takita

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

24 Citations (Scopus)

Abstract

The capacitances of CuO mixed with BaSnO₃, CaTiO₃, and ZnO are dependent on the CO₂ concentration, similarly to that of CuO-BaTiO₃. In particular, the mixed oxide CuO-SrTiO₃ is more sensitive to CO₂ than CuO-BaTiO₃, and the mixed-oxide capacitor CuO-BaSnO₃ is promising for sensing CO₂ over a wide range of concentrations. Moreover, addition of Ag to CuO-BaTiO₃ mixed oxide is effective for enhancing the sensitivity to CO₂. The sensitivity (C_CO2/C_air) to 2% CO₂ of Ag-added CuO-BaTiO₃, which has been calcined at 700 °C followed by operation for 60 h, is as high as 70.

Original language	English
Pages (from-to)	470-472
Number of pages	3
Journal	Sensors and Actuators: B. Chemical
Volume	13
Issue number	1-3
DOIs	https://doi.org/10.1016/0925-4005(93)85429-E
Publication status	Published - May 1993
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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10.1016/0925-4005(93)85429-E

Cite this

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title = "Capacitive-type gas sensor for the selective detection of carbon dioxide",

abstract = "The capacitances of CuO mixed with BaSnO3, CaTiO3, and ZnO are dependent on the CO2 concentration, similarly to that of CuO-BaTiO3. In particular, the mixed oxide CuO-SrTiO3 is more sensitive to CO2 than CuO-BaTiO3, and the mixed-oxide capacitor CuO-BaSnO3 is promising for sensing CO2 over a wide range of concentrations. Moreover, addition of Ag to CuO-BaTiO3 mixed oxide is effective for enhancing the sensitivity to CO2. The sensitivity (CCO2/Cair) to 2% CO2 of Ag-added CuO-BaTiO3, which has been calcined at 700 °C followed by operation for 60 h, is as high as 70.",

author = "Tatsumi Ishihara and Kazuhiro Kometani and Yukako Mizuhara and Yusaku Takita",

year = "1993",

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doi = "10.1016/0925-4005(93)85429-E",

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journal = "Sensors and Actuators: B. Chemical",

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T1 - Capacitive-type gas sensor for the selective detection of carbon dioxide

AU - Ishihara, Tatsumi

AU - Kometani, Kazuhiro

AU - Mizuhara, Yukako

AU - Takita, Yusaku

PY - 1993/5

Y1 - 1993/5

N2 - The capacitances of CuO mixed with BaSnO3, CaTiO3, and ZnO are dependent on the CO2 concentration, similarly to that of CuO-BaTiO3. In particular, the mixed oxide CuO-SrTiO3 is more sensitive to CO2 than CuO-BaTiO3, and the mixed-oxide capacitor CuO-BaSnO3 is promising for sensing CO2 over a wide range of concentrations. Moreover, addition of Ag to CuO-BaTiO3 mixed oxide is effective for enhancing the sensitivity to CO2. The sensitivity (CCO2/Cair) to 2% CO2 of Ag-added CuO-BaTiO3, which has been calcined at 700 °C followed by operation for 60 h, is as high as 70.

AB - The capacitances of CuO mixed with BaSnO3, CaTiO3, and ZnO are dependent on the CO2 concentration, similarly to that of CuO-BaTiO3. In particular, the mixed oxide CuO-SrTiO3 is more sensitive to CO2 than CuO-BaTiO3, and the mixed-oxide capacitor CuO-BaSnO3 is promising for sensing CO2 over a wide range of concentrations. Moreover, addition of Ag to CuO-BaTiO3 mixed oxide is effective for enhancing the sensitivity to CO2. The sensitivity (CCO2/Cair) to 2% CO2 of Ag-added CuO-BaTiO3, which has been calcined at 700 °C followed by operation for 60 h, is as high as 70.

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ER -

Capacitive-type gas sensor for the selective detection of carbon dioxide

Abstract

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