کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7148856 | 1462105 | 2013 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and gas sensing properties to NO2 of ZnO nanoparticles
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and gas sensing properties to NO2 of ZnO nanoparticles Synthesis and gas sensing properties to NO2 of ZnO nanoparticles](/preview/png/7148856.png)
چکیده انگلیسی
In this work, we prepared ZnO nanoparticles with sizes ranging from 5 to 270 nm by annealing the precursor of zinc carbonate hydroxide at four different temperatures (200, 400, 600 and 800 °C) and investigated their morphology, structure and optical properties as well as sensing performances to NO2. The precursor with small particle size and narrow size distribution was synthesized by a simple method involving separate nucleation and aging steps (SNAS). Among four obtained ZnO samples, the ZnO-400 (annealed at 400 °C) exhibits the best optical properties and the highest sensing response to NO2. The ZnO-400 shows fast response (â¤30 s) and recovery (â¤120 s) to NO2 and high selectivity to NO2. Besides, we further discussed a correlation between the gas sensing response and the defects of ZnO nanoparticles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 185, August 2013, Pages 377-382
Journal: Sensors and Actuators B: Chemical - Volume 185, August 2013, Pages 377-382
نویسندگان
Faying Fan, Yongjun Feng, Shouli Bai, Junting Feng, Aifan Chen, Dianqing Li,