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KISSGas sensing materials for detecting inflammable gas such as alcohol, propane, acetic acid, carbon monoxide, hydrogen were developed by utilizing MgO-Cr₂O₃-TiO₂ system. Between 300℃ and 500℃, reversible chemisorption becomes dominant and the...
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RISS 인기검색어
https://www.riss.kr/link?id=A3080562
- 저자
- 발행기관
- 학술지명
- 권호사항
-
발행연도
1986
-
작성언어
Korean
-
KDC
530
-
등재정보
KCI등재
-
자료형태
학술저널
- 발행기관 URL
-
수록면
21-26(6쪽)
- 제공처
-
0
상세조회 -
0
다운로드
부가정보
다국어 초록 (Multilingual Abstract)
Gas sensing materials for detecting inflammable gas such as alcohol, propane, acetic acid, carbon monoxide, hydrogen were developed by utilizing MgO-Cr₂O₃-TiO₂ system.
Between 300℃ and 500℃, reversible chemisorption becomes dominant and the electrical canduction of P-type semiconductive with the gas chemisorption. The ceramic sensor exhibits a high sensitivity to particular reducing gas such as alcohol, whereas propane and butane have little effect on the resistivity. The time response of adsorption is estimated to be about 20 sec. On the other hand, the desorption process, which corresponds to oxidation due to oxygen adsorption, take more than 60 sec.
Thus the ceramic sensor can be used as a alcohol sensor in an ambient atmosphere. As the oxygen concentration is increased from 0.1 to 10 precent(10³-10^6ppm), the resistance decreases rapidly but stabilizes at higher concentration.
Between 300℃ and 500℃, reversible chemisorption becomes dominant and the electrical canduction of P-type semiconductive with the gas chemisorption. The ceramic sensor exhibits a high sensitivity to particular reducing gas such as alcohol, whereas propane and butane have little effect on the resistivity. The time response of adsorption is estimated to be about 20 sec. On the other hand, the desorption process, which corresponds to oxidation due to oxygen adsorption, take more than 60 sec.
Thus the ceramic sensor can be used as a alcohol sensor in an ambient atmosphere. As the oxygen concentration is increased from 0.1 to 10 precent(10³-10^6ppm), the resistance decreases rapidly but stabilizes at higher concentration.
Gas sensing materials for detecting inflammable gas such as alcohol, propane, acetic acid, carbon monoxide, hydrogen were developed by utilizing MgO-Cr₂O₃-TiO₂ system.
Between 300℃ and 500℃, reversible chemisorption becomes dominant and the electrical canduction of P-type semiconductive with the gas chemisorption. The ceramic sensor exhibits a high sensitivity to particular reducing gas such as alcohol, whereas propane and butane have little effect on the resistivity. The time response of adsorption is estimated to be about 20 sec. On the other hand, the desorption process, which corresponds to oxidation due to oxygen adsorption, take more than 60 sec.
Thus the ceramic sensor can be used as a alcohol sensor in an ambient atmosphere. As the oxygen concentration is increased from 0.1 to 10 precent(10³-10^6ppm), the resistance decreases rapidly but stabilizes at higher concentration.
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