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Conference Paper
Efficient Reducing Method of Graphene Oxide for Gas Sensor Applications
- Authors
- H.-K. Lee, J. Lee, N.-J. Choi, S. E. Moon, H. Lee, W. S. Yang
- Issue Date
- 2011-09
- Citation
- Eurosensors 2011, pp.892-895
- Language
- English
- Type
- Conference Paper
- Abstract
- 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 Keywords
- 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
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC ND)
(CC BY NC ND)
