کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
743976 | 1462123 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Humidity sensing properties of mesoporous iron oxide/silica composite prepared via hydrothermal process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Mesoporous Fe2O3/SiO2 composites with various Fe/Si molar ratios were synthesized via hydrothermal route and then studied as humidity sensor materials. The best result is obtained for the sample with a Fe/Si molar ratio of 0.5, which exhibits high humidity sensitivity, rapid response and recovery, small hysteresis and excellent linearity. The impedance of the sensor varies more than four orders of magnitude during the whole relative humidity (RH) from 11 to 95%. The response time and recovery time of the sensor is about 20 and 40 s, respectively. These results make our product a good candidate in fabricating high performance humidity sensors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 160, Issue 1, 15 December 2011, Pages 334–340
Journal: Sensors and Actuators B: Chemical - Volume 160, Issue 1, 15 December 2011, Pages 334–340
نویسندگان
Qing Yuan, Nan Li, Wangchang Geng, Yue Chi, Jinchun Tu, Xiaotian Li, Changlu Shao,