کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7139724 | 1462023 | 2018 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Humidity sensor based on solution processible microporous silica nanoparticles
ترجمه فارسی عنوان
سنسور رطوبت بر اساس نانوذرات سیلیکا میکروپروسسوری قابل بازیافت است
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کلمات کلیدی
سنسور رطوبت، نانوذرات سیلیکا میکروپارس، فرآیند حل، واکنش کلیک کنید
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Composites fabricated by mesoporous silica loading hydrophilic elements have been widely investigated as humidity sensitive materials. The physical mixing process for loading hydrophilic elements is difficult to guarantee the uniformity and structural stability of the composites. Furthermore, the poor dispersibility of the silica skeleton restricts its solution processability. Herein, solution processible organic-inorganic hybrid materials were synthesized via a thiol-ene click reaction between sulfhydryl functionalized microporous silica nanoparticles (MSNs) and hydrophilic alkenyl monomer. The optimal hybrid material could disperse in water stably with a concentration of 50â¯mg/mL owing to the small particle size (about 105â¯nm) and the hydrophilic characteristic. Humidity sensors were fabricated by solution process and the humidity sensing properties were investigated. The sensor exhibits high sensitivity (about three orders impedance modulus change), small hysteresis (â¼2% RH) and rapid response (the response and recovery time are 5 and 40â¯s, respectively) in the humidity range of 11%-95% RH.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 266, 1 August 2018, Pages 131-138
Journal: Sensors and Actuators B: Chemical - Volume 266, 1 August 2018, Pages 131-138
نویسندگان
Hongran Zhao, Tong Zhang, Rongrong Qi, Jianxun Dai, Sen Liu, Teng Fei, Geyu Lu,