期刊
CHINESE PHYSICS LETTERS
卷 27, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/27/5/050701
关键词
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资金
- National Innovation Experiment Program [2009125]
- Jilin Environment Office [2009-22]
KCl/mobil composition of matter-41 (MCM-41) composite has been synthesized via a heat-treating process and characterized by x-ray diffraction, high resolution transmission electron microscopy, and nitrogen adsorption/desorption isotherms. In contrast with pure MCM-41, KCl/MCM-41 composite exhibits improved humidity sensing properties within the relative humidity range of 11-95%. The impedance of KCl/MCM-41 composite changes by about four orders of magnitude over the whole humidity range with the response time and the recovery times are about 30 s and 35 s, respectively. Small humidity hysteresis and good stability are also observed based on our product. These results make our product a good candidate in fabricating humidity sensors with high performances and low synthetic complexity.
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