Facile synthesis of hollow In2O3 microspheres and their gas sensing performances

被引：15
|
作者：
Hu, Xiaolong [1 ]
Zhou, Xin [1 ]
Wang, Biao [2 ]
Sun, Peng [1 ]
Li, Xiaowei [1 ]
Wang, Chen [1 ]
Liu, Jiangyang [1 ]
Lu, Geyu [1 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
来源：
RSC ADVANCES | 2015年 / 5卷 / 06期
关键词：
THIN-FILM; SPRAY-PYROLYSIS; HYDROTHERMAL SYNTHESIS; ASSISTED SYNTHESIS; SENSORS; NO2; SPHERES; NANOSTRUCTURES; NANOPARTICLES; SENSITIVITY;
D O I：
10.1039/c4ra12244e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hollow In2O3 microspheres constructed by primary nanoparticles were successfully prepared by thermal treatment of the precursor, which was synthesized via a facile chemical solution route without any templates or surfactants. The images of field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) indicated that the sample was composed of a large number of hollow In2O3 microspheres with diameters of 1-2 mu m. In addition, a gas sensor based on the In2O3 hollow microspheres was fabricated and its gas sensing performances were investigated. It was found that sensors based on the as-prepared sample had a low operating temperature (80 degrees C), and exhibited high response, low detection limit and excellent selectivity to NO2.
引用
收藏
页码：4609 / 4614
页数：6
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