کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7145926 | 1462079 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Humidity sensor based on AlPO4-5 zeolite with high responsivity and its sensing mechanism
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
AlPO4-5 zeolite was successfully employed in a resistance type humidity sensor. AlPO4-5 zeolite humidity sensor was fabricated by coating nanosized materials over interdigitated electrodes. The sensor shows good linearity over a relative humidity (RH) range from 11% to 95%. At the frequency of 100Â Hz, response and recovery time are both about 2Â s, and the maximum hysteresis is <3%. In nanoscale confinement range, the sorbed water quantity in AlPO4-5 channels is exceptionally large and the water sorption phenomenon looks like “capillary condensation” phase transition. The complex impedance at different RH was investigated to understand the sensing mechanism. The results indicate the potential application of AlPO4-5 zeolite for fabricating high-performance humidity sensors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 212, June 2015, Pages 242-247
Journal: Sensors and Actuators B: Chemical - Volume 212, June 2015, Pages 242-247
نویسندگان
Yu Chen, Yupeng Zhang, Dongmei Li, Fengli Gao, Caihui Feng, Shanpeng Wen, Shengping Ruan,