#### Tape-casted solid electrochemical $CO_2$ sensor with long-term properties장기안정성이 개선된 고체 전기화학식 테이프 캐스팅 이산화탄소 센서

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Electrochemical carbon dioxide sensor for measuring $CO_2$ concentration in air has been fabricated by tape casting method. By using tape casting method, sensor fabrication process could be simple and easy compared with screen printing or other method. On the other hand, compromising heterojunction structure of the sensor which is composed of Na-$\beta$''-alumina (NBA) in contact with Yittria Stabilized Zirconia (YSZ) is highly risky procedure because of different thermal expansion and extraction coefficient between different material. Also, alumina substrate with printed heater pattern should also be attached to this structure which makes harder triple junction structure. In this study, the structural stabilization process by changing sensor structure and abrication method. Also, after the establishment of sensor structure, various test has been put in to practice for comparing superiority of newly produced sensor. The most representative test field in this type of sensor is initial stabilization time test and long-term stability test.
Park, Chong-Ookresearcher박종욱researcher
Description
한국과학기술원 :신소재공학과,
Publisher
한국과학기술원
Issue Date
2019
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 신소재공학과, 2019.8,[ix, 130 p. :]

Keywords

$CO_2$ sensor▼along term stability▼afast stabilizing▼aelectrochemical sensor▼atape casting; 전기화학식 이산화탄소 센서▼a장기안정성▼aNBA▼aNASICON▼a감지물질▼aTape casting

URI
http://hdl.handle.net/10203/283246