화학공학소재연구정보센터
학회 한국재료학회
학술대회 2017년 가을 (11/15 ~ 11/17, 경주 현대호텔)
권호 23권 2호
발표분야 E. 환경/센서 재료 분과
제목 Iron oxide - carbon nanotube composite structure for room temperature ammonia gas sensor
초록 Fe2O3:CNT nanoporous structures were fabricated and characterized for ammonia detection at room temperature. The porous structures were synthesized by the arc-discharge method followed by oxidation. The sensor showed a good response, repeatability, and stability at room temperature for measurement at a concentration of 500 ppm NH3. Specially, our sensor showed the highest response behavior at room temperature, and we claim the optimum temperature of room temperature. The result is a unique phenomenon when compare to the other popular oxide gas sensors. However, the response and recovery kinetics remained slow, and need to be improved. Sensing mechanisms and detail sensing properties will be discussed.
저자 Nguyen Minh Hieu, 김도진, 김천중
소속 충남대
키워드 Gas sensor; room temperature; CNT; iron oxide
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