Issue 44, 2016
From the journal:

RSC Advances

Ultrahigh humidity sensitivity of NaCl-added 3D mesoporous silica KIT-6 and its sensing mechanism†

Xiaowei He,a   Wangchang Geng,*a   Baoliang Zhang,a   Lemin Jia,a   Libing Duana  and  Qiuyu Zhang*a  

* Corresponding authors

a School of Science, Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
E-mail: w.geng@nwpu.edu.cn, qyzhang@nwpu.edu.cn

Abstract

Mesoporous silica KIT-6 was synthesized by a hydrothermal method and NaCl-added KIT-6 was prepared by a facile grind method. Compared with pure KIT-6, NaCl-added KIT-6 showed greatly improved humidity sensitivity. The impedance changed by more than five orders of magnitude over the whole humidity range (11–95% RH). The response time was about 47 s. Complex impedance spectra were also provided and discussed in detail to explore the humidity sensing mechanism of NaCl-added KIT-6.

Graphical abstract: Ultrahigh humidity sensitivity of NaCl-added 3D mesoporous silica KIT-6 and its sensing mechanism

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Article information

DOI
https://doi.org/10.1039/C6RA03385G
Article type
Paper
Submitted
05 Feb 2016
Accepted
09 Apr 2016
First published
11 Apr 2016

RSC Adv., 2016,6, 38391-38398

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Ultrahigh humidity sensitivity of NaCl-added 3D mesoporous silica KIT-6 and its sensing mechanism

X. He, W. Geng, B. Zhang, L. Jia, L. Duan and Q. Zhang, RSC Adv., 2016, 6, 38391 DOI: 10.1039/C6RA03385G

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