期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 209, 期 -, 页码 729-734出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.12.031
关键词
Mesoporous TiO2 microspheres; NiO-wrapped TiO2; Ammonia; VOCs; Gas sensors
资金
- National Natural Science Foundation of China [61474012, 61306091, 61176068, 61131004]
- Hainan Key Projects in Science and Technology [ZDXM2014097]
- Fundamental Research Funds for the Central Universities
- Foundation of Key Lab. for Micro/Nano Technology and System of Liaoning Province [20140404]
Pure mesoporous TiO2 microspheres based chemoresistive gas sensors showed response to several organic volatile compounds (VOCs) such as formaldehyde, methanol, ethanol, ammonia and acetone under the UV illumination in the humid air at room temperature. With the loading of NiO at the porous surface of TiO2 microspheres, the sensor indicated a different sensing property. The sensor using 10 wt% NiO-wrapped mesoporous TiO2 composite microspheres showed a good sensitivity to different concentrations of ammonia from 10 ppm to 100 ppm whereas almost no response to other VOCs indicating an excellent selectivity to detect ammonia in the humid air with UV illumination at room temperature. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据