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

Xiaowei He; Wangchang Geng; Baoliang Zhang; Lemin Jia; Libing Duan; Qiuyu Zhang

doi:10.1039/c6ra03385g

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

Xiaowei He
, Wangchang Geng
, Baoliang Zhang
, Lemin Jia
, Libing Duan
, Qiuyu Zhang

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

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

35 Scopus citations

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.

Original language	English
Pages (from-to)	38391-38398
Number of pages	8
Journal	RSC Advances
Volume	6
Issue number	44
DOIs	https://doi.org/10.1039/c6ra03385g
State	Published - 2016

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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.",

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AU - He, Xiaowei

AU - Geng, Wangchang

AU - Zhang, Baoliang

AU - Jia, Lemin

AU - Duan, Libing

AU - Zhang, Qiuyu

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84966396983

U2 - 10.1039/c6ra03385g

DO - 10.1039/c6ra03385g

M3 - 文章

AN - SCOPUS:84966396983

SN - 2046-2069

VL - 6

SP - 38391

EP - 38398

JO - RSC Advances

JF - RSC Advances

IS - 44

ER -

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

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