TY - GEN
T1 - 3D sulfonated graphene hydrogel for enhanced chemical sensing
AU - Wu, Jin
AU - Tao, Kai
AU - Chen, Di
AU - Miao, Jianmin
AU - Norford, Leslie K.
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/2/23
Y1 - 2017/2/23
N2 - One-step, hydrothermal synthesized 3D sulfonated reduced graphene oxide hydrogel (S-RGOH) is employed to fabricate a chemical sensor with high sensitivity, good selectivity, fast response and reversibility toward several gases. Compared with unmodified RGOH counterparts, the 3D NaHSO3 functionalized S-RGOH sensor exhibits 61.3 and 58.9 times higher responses to NO2 and NH3 respectively. A low limit of detection (LOD) of 4.1 ppb and 1.48 ppm for NO2 and NH3, respectively, has been achieved. The sensor exhibits fast and complete recovery at room temperature. Importantly, for the first time, the characteristics of a linear fitted response-temperature relationship are exploited to discriminate many different gases. An integrated microheater is deployed to modulate substrate temperature rapidly with low power consumption.
AB - One-step, hydrothermal synthesized 3D sulfonated reduced graphene oxide hydrogel (S-RGOH) is employed to fabricate a chemical sensor with high sensitivity, good selectivity, fast response and reversibility toward several gases. Compared with unmodified RGOH counterparts, the 3D NaHSO3 functionalized S-RGOH sensor exhibits 61.3 and 58.9 times higher responses to NO2 and NH3 respectively. A low limit of detection (LOD) of 4.1 ppb and 1.48 ppm for NO2 and NH3, respectively, has been achieved. The sensor exhibits fast and complete recovery at room temperature. Importantly, for the first time, the characteristics of a linear fitted response-temperature relationship are exploited to discriminate many different gases. An integrated microheater is deployed to modulate substrate temperature rapidly with low power consumption.
UR - http://www.scopus.com/inward/record.url?scp=85015716917&partnerID=8YFLogxK
U2 - 10.1109/MEMSYS.2017.7863413
DO - 10.1109/MEMSYS.2017.7863413
M3 - 会议稿件
AN - SCOPUS:85015716917
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 350
EP - 353
BT - 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems, MEMS 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 30th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2017
Y2 - 22 January 2017 through 26 January 2017
ER -