Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 201, Issue -, Pages 281-285Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.04.075
Keywords
FeCI3-NH2-MIL-125(Ti); Humidity; Sensor; Complex impedance
Funding
- National Natural Science Foundation of China [61274068, 61275035]
- National High Technology Research and Development Program of China [2013AA030902]
- Project of Science and Technology Development Plan of Jilin Province [20120324, 20130206021GX]
- Opened Fund of the State Key Laboratory on Integrated Opto-electronics [IOSKL2013KF10]
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FeCl3-NH2-MIL-125(Ti) with different FeC13 content was prepared and characterized by XRD, SEM and XPS. The humidity sensing properties ofFeCl(3)-NH2-MIL-125(Ti)have been investigated. Compared with NH2-MIL-1 25(Ti),FeCl3-NH2-MIL-125(Ti) was more effective in the humidity sensing. The optimal mixing ratio was FeCl3-NH2-MIL-125(Ti) (8 wt%), which exhibited the best linearity. The impedance of FeCl3-NH2-MIL-125(Ti) (8 wt%) decreases by almost three orders of magnitude in the range of 11%-95% RH. The response time and recovery time of the humidity sensor by FeCl3-NH2-MIL-125(Ti) (8 wt%) are 11 s and 86s respectively. These results indicate the potential application of FeCl3-NH2-MIL-125(Ti) in humidity sensors. (C) 2014 Elsevier B.V. All rights reserved.
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