Na2CO3-CaCO3 보조상을 사용한 후막형 CO2 센서의 특성연구
Characteristics of thick film CO2 sensors attached withNa2CO3-CaCO3 auxiliary phases
1
조회
0
다운로드
0
인용
0
참고문헌
초록
Abstract
Potentiometric CO2 sensors were fabricated using a NASICON (Na1+xZr2SixP3-xO12, 1.8<x<2.4) thick film and auxiliary layers. The powder of a precursor of NASICON with high purity was synthesized by a sol-gel method. By using the NASICON paste, an electrolyte was prepared on the alumina substrate by screen printing and then sintered at 1000oC for 4 h. A series of Na2CO3-CaCO3 auxiliary phases were deposited on the Pt sensing electrode. The electromotive force (emf) values were linearly dependent on the logarithm of CO2 concentration in the range between 1,000 and 10,000 ppm. The device attached with Na2CO3-CaCO3 (1:2 in mol.%) showed good sensing properties in the low temperatures.
참고문헌 (11)
- "Study of CO2 electrodes in open devices of potentiometric sensors", 158, pp.297~308 (2003)
- "Environmental gas sensing", 20, pp.95~102 (1994)
- "ol-gel법에 의한 Li 이온-고체 전해질의 CO2 가스 감지 특성", 4(3), pp.22~29 (1995)
- "Single crystal investigations on NASICON Na", 1+z, 2-y, pp.Si, x[DOI]
- "Solid-state potentiometric CO2 sensors using anion conductor and metal carbonate", pp.260~265 (1995)
- "aO를 첨가한 Na고체전해질 센서의 CO2가스 감도향상에 관한 연구", 11(4), pp.218~223 (2002)
- "NASICON thick film-based CO2 sensor prepared by a sol-gel method", 80, pp.28~32 (2001)
- "Electrical properties of sol-gel processed NASICON having new compositions", 65, pp.204~208 (2000)
- "Investigations of CO2 sensor based on NASICON synthesized by a new sol-gel process", 93, pp.237~242 (2003)
- "Sol-gel synthesis of NASICON discs from aqueous solution", 7(8), pp.1457~1460 (1997)
- "Interfacial structure of NASICON-based sensor attached with Li2CO3-CaCO3 auxiliary phase for detection of CO2", pp.647~653 (2000)