Facile fabrication of NaCl-added mesoporous silica HMS composite and its humidity responsing performance

Shaobing Ge; Xiaowei He; Lemin Jia; Libing Duan; Shan Zhang; Qiuyu Zhang; Wangchang Geng

doi:10.1007/s10971-017-4348-5

Facile fabrication of NaCl-added mesoporous silica HMS composite and its humidity responsing performance

Shaobing Ge, Xiaowei He, Lemin Jia, Libing Duan, Shan Zhang, Qiuyu Zhang, Wangchang Geng

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Abstract: A humidity-responsive material of NaCl-added mesoporous silica HMS composite was obtained successfully by a facile grind method where mesoporous silica HMS had been synthesized via a sol–gel route. Under room temperature, the sample of NaCl-added HMS with NaCl content of 0.2 g/g showed excellent humidity sensitivity. The impedance decreased linearly by more than four orders of magnitude from 11 to 95% relative humidity and the response time was about 18 s. In addition, the effect of pore order in mesoporous silica on its humidity-sensitive properties was discussed and complex impedance spectra were investigated to validate the humidity-sensing mechanism of Na-HMS(0.2). Graphical Abstract: [InlineMediaObject not available: see fulltext.]

Original language	English
Pages (from-to)	635-642
Number of pages	8
Journal	Journal of Sol-Gel Science and Technology
Volume	82
Issue number	3
DOIs	https://doi.org/10.1007/s10971-017-4348-5
State	Published - 1 Jun 2017

Keywords

Humidity sensor
Mesoporous silica HMS
Na-HMS
Sensing mechanism

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10.1007/s10971-017-4348-5

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title = "Facile fabrication of NaCl-added mesoporous silica HMS composite and its humidity responsing performance",

abstract = "Abstract: A humidity-responsive material of NaCl-added mesoporous silica HMS composite was obtained successfully by a facile grind method where mesoporous silica HMS had been synthesized via a sol–gel route. Under room temperature, the sample of NaCl-added HMS with NaCl content of 0.2 g/g showed excellent humidity sensitivity. The impedance decreased linearly by more than four orders of magnitude from 11 to 95% relative humidity and the response time was about 18 s. In addition, the effect of pore order in mesoporous silica on its humidity-sensitive properties was discussed and complex impedance spectra were investigated to validate the humidity-sensing mechanism of Na-HMS(0.2). Graphical Abstract: [InlineMediaObject not available: see fulltext.]",

keywords = "Humidity sensor, Mesoporous silica HMS, Na-HMS, Sensing mechanism",

author = "Shaobing Ge and Xiaowei He and Lemin Jia and Libing Duan and Shan Zhang and Qiuyu Zhang and Wangchang Geng",

note = "Publisher Copyright: {\textcopyright} 2017, Springer Science+Business Media New York.",

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TY - JOUR

T1 - Facile fabrication of NaCl-added mesoporous silica HMS composite and its humidity responsing performance

AU - Ge, Shaobing

AU - He, Xiaowei

AU - Jia, Lemin

AU - Duan, Libing

AU - Zhang, Shan

AU - Zhang, Qiuyu

AU - Geng, Wangchang

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Abstract: A humidity-responsive material of NaCl-added mesoporous silica HMS composite was obtained successfully by a facile grind method where mesoporous silica HMS had been synthesized via a sol–gel route. Under room temperature, the sample of NaCl-added HMS with NaCl content of 0.2 g/g showed excellent humidity sensitivity. The impedance decreased linearly by more than four orders of magnitude from 11 to 95% relative humidity and the response time was about 18 s. In addition, the effect of pore order in mesoporous silica on its humidity-sensitive properties was discussed and complex impedance spectra were investigated to validate the humidity-sensing mechanism of Na-HMS(0.2). Graphical Abstract: [InlineMediaObject not available: see fulltext.]

AB - Abstract: A humidity-responsive material of NaCl-added mesoporous silica HMS composite was obtained successfully by a facile grind method where mesoporous silica HMS had been synthesized via a sol–gel route. Under room temperature, the sample of NaCl-added HMS with NaCl content of 0.2 g/g showed excellent humidity sensitivity. The impedance decreased linearly by more than four orders of magnitude from 11 to 95% relative humidity and the response time was about 18 s. In addition, the effect of pore order in mesoporous silica on its humidity-sensitive properties was discussed and complex impedance spectra were investigated to validate the humidity-sensing mechanism of Na-HMS(0.2). Graphical Abstract: [InlineMediaObject not available: see fulltext.]

KW - Humidity sensor

KW - Mesoporous silica HMS

KW - Na-HMS

KW - Sensing mechanism

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DO - 10.1007/s10971-017-4348-5

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SN - 0928-0707

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JO - Journal of Sol-Gel Science and Technology

JF - Journal of Sol-Gel Science and Technology

IS - 3

ER -

Facile fabrication of NaCl-added mesoporous silica HMS composite and its humidity responsing performance

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Keywords

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