期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 240, 期 -, 页码 1321-1329出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.07.160
关键词
Self-assembly method; SnO2; Annulus-like mesoporous; Ethanol sensor
资金
- National Nature Science Foundation of China [61304242, 61134010, 61520106003]
- Program for Chang Jiang Scholars and Innovative Research Team in University [IRT13018]
- National High-Tech Research and Development Program of China (863 Program) [2014AA06A505]
- 7Science and Technology Development Program of Jilin Province [20150520091JH]
Horseshoe-shaped SnO2 with annulus-like mesoporous was successfully synthesized by self-assembly method in this work. The obtained materials were characterized by X-ray diffraction (XRD), Brunauer-Emmet-Teller (BET), Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results revealed that the horseshoe-shaped samples were composed of amounts of annulus like mesoporous with an average diameter about 2 nm and high specific surface area. Moreover, gas sensor based on the as-prepared samples was fabricated and its sensing performances were investigated. It was revealed that the sensitivity towards 100 ppm of ethanol enhanced to 17.3 under the operation temperature 225 degrees C for the sensor based on SnO2 calcined at 400 degrees C. And the sensor based on SnO2 calcined at 400 degrees C presented a higher response towards 10-200 ppm ethanol. In addition, the relationship between morphology and sensing property of synthesized materials towards ethanol has been investigated. The results above indicate the potential of the annulus-like mesoporous SnO2 as ethanol gas sensor material. (C) 2016 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