TY - GEN
T1 - 3D porous graphene hydrogel for improved gas sensing performance at elevated temperature
AU - Wu, Jin
AU - Tao, Kai
AU - Miao, Jianmin
AU - Norford, Leslie K.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/2/26
Y1 - 2016/2/26
N2 - This paper reports a new high-performance NO2 and NH3 sensor using cost-effective hydrothermal synthesized graphene hydrogel (GH) with the assistance of an integrated microheater For the first time, the microheater is exploited to enhance the selectivity of detecting NO2 by elevating the substrate temperature. In addition, the microheater is employed to greatly speed up the signal recovery process. The NO2 and NH3 gases with low concentrations down to 200 ppb and 20 ppm respectively are detected by the GH sensor effectively. Importantly, the 3D GH exhibits 10 times higher sensitivity than the 2D graphene sheet counterpart, demonstrating the practical applicability of 3D GH in gas sensing.
AB - This paper reports a new high-performance NO2 and NH3 sensor using cost-effective hydrothermal synthesized graphene hydrogel (GH) with the assistance of an integrated microheater For the first time, the microheater is exploited to enhance the selectivity of detecting NO2 by elevating the substrate temperature. In addition, the microheater is employed to greatly speed up the signal recovery process. The NO2 and NH3 gases with low concentrations down to 200 ppb and 20 ppm respectively are detected by the GH sensor effectively. Importantly, the 3D GH exhibits 10 times higher sensitivity than the 2D graphene sheet counterpart, demonstrating the practical applicability of 3D GH in gas sensing.
UR - http://www.scopus.com/inward/record.url?scp=84971010782&partnerID=8YFLogxK
U2 - 10.1109/MEMSYS.2016.7421773
DO - 10.1109/MEMSYS.2016.7421773
M3 - 会议稿件
AN - SCOPUS:84971010782
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 889
EP - 892
BT - MEMS 2016 - 29th IEEE International Conference on Micro Electro Mechanical Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 29th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2016
Y2 - 24 January 2016 through 28 January 2016
ER -