کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7141861 | 1462034 | 2018 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and gas sensing properties of hierarchical leaf-like SnO2 materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Leaf-like SnO2 hierarchical architectures were successfully synthesized via a facile template-free hydrothermal synthesis method. The observations with field emission scanning electron microscopic and transmission electron microscopy demonstrated that the uniform and independent leaf-like SnO2 architectures were obtained, and each dendrite was consisted by a main stem with two groups of highly symmetric and parallel branch. To investigate the effect of diammonium phosphate and the formation process of hierarchical SnO2 leaf-like microstructure, the controlled experiments of the hydrothermal process with different amounts of diammonium phosphate and different reaction times have been carried out systematically. Based on the experimental results, a possible formation mechanism of SnO2 hierarchical architecture was speculated. In addition, the gas sensing performances of the as-prepared products were investigated and the results revealed that the sensor based on the unique leaf-like SnO2 hierarchical architectures exhibited high response and good selectivity properties to NO2 at low working temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 255, Part 3, February 2018, Pages 2944-2951
Journal: Sensors and Actuators B: Chemical - Volume 255, Part 3, February 2018, Pages 2944-2951
نویسندگان
Yiqun Zhang, Dan Li, Longgui Qin, Peilu Zhao, Fengmin Liu, Xiaohong Chuai, Peng Sun, Xishuang Liang, Yuan Gao, Yanfeng Sun, Geyu Lu,