Humidity sensing property of Al-doped mesoporous silica

Geng Wangchang, Duan Libing, Zhang Qiuyu

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

In order to study the humidity sensing property and sensing mechanism of Al-doped mesoporous silica SBA-15 (Al-SBA-15), Al-SBA-15 was prepared by a simple grind method following a heat-treatment process. Its structure and morphology was characterized by X-ray diffraction (XRD), Infrared (IR), scanning electron microscope (SEM). Humidity sensing response was studied and the results indicated that Al-SBA-15 displayed better sensing property when the frequency was 100 Hz. The impedance of Al-SBA-15 changes three orders of magnitude when relative humidity changes from 11% to 95%. Complex impedance spectra, the corresponding equivalent circuit under different relative humidity are carefully analyzed to explore the humidity sensing mechanism of this material. This material can be used as a promising humidity sensing material.

源语言英语
主期刊名Applied Mechanics and Mechanical Engineering III
992-997
页数6
DOI
出版状态已出版 - 2013
活动2012 3rd International Conference on Applied Mechanics and Mechanical Engineering, ICAMME 2012 - Macau, 中国
期限: 14 11月 201215 11月 2012

出版系列

姓名Applied Mechanics and Materials
249-250
ISSN(印刷版)1660-9336
ISSN(电子版)1662-7482

会议

会议2012 3rd International Conference on Applied Mechanics and Mechanical Engineering, ICAMME 2012
国家/地区中国
Macau
时期14/11/1215/11/12

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