Effects of F doping on TiO2 acidic sites and their application in QCM based gas sensors
文献类型：期刊论文
| 作者 | Zhao, Yingqiang ; Du, Xin ; Wang, Xiaoying ; He, Junhui ; Yu, Yunbo ; He, Hong |
| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2010-11-26 |
| 卷号 | 151期号:1页码:205-211 |
| 关键词 | Titanium dioxide F doping Mass sensor DMMP DRIFTS |
| 中文摘要 | Titanium dioxide (TiO2) and fluorine doped titanium dioxide (F-TiO2) particles were prepared by a one-pot hydrothermal synthesis, and applied on quartz crystal microbalance (QCM) resonators to detect trace levels of nerve agent stimulant, dimethyl methylphosphonate (DMMP). DMMP sensing measurements exhibited that TiO2 functionalized QCM resonators had fast response and recovery as well as satisfactory sensitivity. F-TiO2 functionalized QCM resonators showed even faster response and higher sensitivity but rather slow recovery. The sensing mechanism and the effect of fluorine doping were examined by diffuse reflectance infrared Fourier transform spectroscopy, revealing that the adsorption took place at Bronsted acid sites at the initial stage and at Lewis acid sites later. Fluorine doping on TiO2 greatly enhanced the acidity of Lewis acid sites, resulting in faster response but slower recovery than pure TiO2. X-ray diffraction analyses demonstrated that the fluorine doping could enhance the crystalinity of anatase. (C) 2010 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000284793100031 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21030]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Zhao, Yingqiang,Du, Xin,Wang, Xiaoying,et al. Effects of F doping on TiO2 acidic sites and their application in QCM based gas sensors[J]. SENSORS AND ACTUATORS B-CHEMICAL,2010,151(1):205-211. |
| APA | Zhao, Yingqiang,Du, Xin,Wang, Xiaoying,He, Junhui,Yu, Yunbo,&He, Hong.(2010).Effects of F doping on TiO2 acidic sites and their application in QCM based gas sensors.SENSORS AND ACTUATORS B-CHEMICAL,151(1),205-211. |
| MLA | Zhao, Yingqiang,et al."Effects of F doping on TiO2 acidic sites and their application in QCM based gas sensors".SENSORS AND ACTUATORS B-CHEMICAL 151.1(2010):205-211. |
入库方式： OAI收割
来源：生态环境研究中心
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