상세정보
학술대회
Efficient Reducing Method of Graphene Oxide for Gas Sensor Applications
- 발행일
- 201109
- 출처
- Eurosensors 2011, pp.892-895
- 협약과제
- 11MB2100, 스마트and그린 빌딩용 자가충전 지능형 센서노드 플랫폼 핵심기술 개발, 김종대
- 초록
- This research reports efficient reducing method of graphene oxide for gas sensor application. Graphene has been known to response gas such as nitrogen oxide (NO 2) or ammonia (NH 3) and change resistivity corresponding to the gas concentration. Here we carried out reduction of graphene oxide by hydriodic acid (HI) method [1], NH 2NH 2 [2] and thermal annealing [3] under H 2 atmosphere and compared gas sensing behavior of each reduced graphene oxide. We found that the reduced graphene oxide by HI method responded to nitrogen oxide gas strongly (sensitivity 5%) compared to that by NH 2NH 2 (sensitivity 2%) or thermal annealing under H 2 (sensitivity 0.15%). © 2011 Published by Elsevier Ltd.
- KSP 제안 키워드
- Gas sensing behavior, Gas sensor applications, Graphene oxide(GOS), H 2, Hydriodic acid, NH 3, NO 2, Nitrogen oxide, Reduction of graphene oxide, Thermal annealing, gas concentration