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Humidity Sensitive Characteristics of Porous Li-Mg-Ti-O-F Ceramic Materials
Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA/CHAMSI), Doctoral School of Sciences and Technology (EDST), Faculty of Agricultural Engineering and Veterinary Medicine and Faculty of Sciences, Lebanese University, Beirut, Lebanon
LUSAC (EA4253), Site Universitaire, Cherbourg-Octeville, France
LUSAC (EA4253), Site Universitaire, Cherbourg-Octeville, France
LUSAC (EA4253), Site Universitaire, Cherbourg-Octeville, France
Faculty of Engineering, Lebanese University, Beirut, Lebanon
Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA/CHAMSI), Doctoral School of Sciences and Technology (EDST), Faculty of Agricultural Engineering and Veterinary Medicine and Faculty of Sciences, Lebanese University, Beirut, Lebanon
- 1 Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA/CHAMSI), Doctoral School of Sciences and Technology (EDST), Faculty of Agricultural Engineering and Veterinary Medicine and Faculty of Sciences, Lebanese University, Beirut, Lebanon
- 2 LUSAC (EA4253), Site Universitaire, Cherbourg-Octeville, France
- 3 LUSAC (EA4253), Site Universitaire, Cherbourg-Octeville, France
- 4 LUSAC (EA4253), Site Universitaire, Cherbourg-Octeville, France
- 5 Faculty of Engineering, Lebanese University, Beirut, Lebanon
- 6 Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA/CHAMSI), Doctoral School of Sciences and Technology (EDST), Faculty of Agricultural Engineering and Veterinary Medicine and Faculty of Sciences, Lebanese University, Beirut, Lebanon
American Journal of Analytical Chemistry·Volume 04 (2013)·Pages 83–89·Published 17 February 2013·DOI10.4236/ajac.2013.42011
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Abstract
C eramic porous MgTiO 3 materials have been prepared by classical solid-state route. The sintered pellets of MgTiO 3 with different LiF contents were characterized for humidity-sensing application. The sintered disks of these mixtures were subjected to capacitance measurements at 20 ℃ as function of the relative humidity from which revealed that the Mixture MgTiO 3 + 2% LiF (w/w) has the better characteristics. The disks were subjected to DC resistance measure ments as a function of relative humidity in the range 15% - 95% RH. The selectivity of this material was discussed and compared to commercial sensor results. The response and recovery characteristics were assessed.
KeywordsCeramic Humidity SensorMagnesium TitanateLi<sub>2</sub>MgTiO<sub>4</sub>CapacitanceResistance
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