Humidity sensing performance of mesoporous CoO(OH) synthesized via one-pot hydrothermal method

Shan Zhang; Wangchang Geng; Xiaowei He; Jinchun Tu; Mingliang Ma; Libing Duan; Qiuyu Zhang

doi:10.1016/j.snb.2018.10.058

Humidity sensing performance of mesoporous CoO(OH) synthesized via one-pot hydrothermal method

Shan Zhang, Wangchang Geng, Xiaowei He, Jinchun Tu, Mingliang Ma, Libing Duan, Qiuyu Zhang

School of Chemistry and Chemical Engineering

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

25 Scopus citations

Abstract

A humidity-responsive material of mesoporous CoO(OH) was synthesized successfully via one-pot hydrothermal method and the influence of CoO(OH) precursor concentration on humidity sensitive performance was studied. The structure and morphology of mesoprous CoO(OH) was characterized by X-ray Diffraction, Infrared spectra, Nitrogen adsorption and desorption, Scanning electron microscope, Transmission electron microscope and so on. The optimized mesoporous CoO(OH) based sensor showed the best linearity and high humidity sensitivity over a wide range of the humidity range (11–95% RH). Its impedance changed nearly four orders of magnitude and the response time was about 1.6 s. Humidity sensing mechanism was discussed in detail.

Original language	English
Pages (from-to)	46-53
Number of pages	8
Journal	Sensors and Actuators, B: Chemical
Volume	280
DOIs	https://doi.org/10.1016/j.snb.2018.10.058
State	Published - 1 Feb 2019

Keywords

Cobalt oxyhydroxide
Humidity sensing
Mesoporous
Sensing mechanism

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title = "Humidity sensing performance of mesoporous CoO(OH) synthesized via one-pot hydrothermal method",

abstract = "A humidity-responsive material of mesoporous CoO(OH) was synthesized successfully via one-pot hydrothermal method and the influence of CoO(OH) precursor concentration on humidity sensitive performance was studied. The structure and morphology of mesoprous CoO(OH) was characterized by X-ray Diffraction, Infrared spectra, Nitrogen adsorption and desorption, Scanning electron microscope, Transmission electron microscope and so on. The optimized mesoporous CoO(OH) based sensor showed the best linearity and high humidity sensitivity over a wide range of the humidity range (11–95% RH). Its impedance changed nearly four orders of magnitude and the response time was about 1.6 s. Humidity sensing mechanism was discussed in detail.",

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T1 - Humidity sensing performance of mesoporous CoO(OH) synthesized via one-pot hydrothermal method

AU - Zhang, Shan

AU - Geng, Wangchang

AU - He, Xiaowei

AU - Tu, Jinchun

AU - Ma, Mingliang

AU - Duan, Libing

AU - Zhang, Qiuyu

PY - 2019/2/1

Y1 - 2019/2/1

N2 - A humidity-responsive material of mesoporous CoO(OH) was synthesized successfully via one-pot hydrothermal method and the influence of CoO(OH) precursor concentration on humidity sensitive performance was studied. The structure and morphology of mesoprous CoO(OH) was characterized by X-ray Diffraction, Infrared spectra, Nitrogen adsorption and desorption, Scanning electron microscope, Transmission electron microscope and so on. The optimized mesoporous CoO(OH) based sensor showed the best linearity and high humidity sensitivity over a wide range of the humidity range (11–95% RH). Its impedance changed nearly four orders of magnitude and the response time was about 1.6 s. Humidity sensing mechanism was discussed in detail.

AB - A humidity-responsive material of mesoporous CoO(OH) was synthesized successfully via one-pot hydrothermal method and the influence of CoO(OH) precursor concentration on humidity sensitive performance was studied. The structure and morphology of mesoprous CoO(OH) was characterized by X-ray Diffraction, Infrared spectra, Nitrogen adsorption and desorption, Scanning electron microscope, Transmission electron microscope and so on. The optimized mesoporous CoO(OH) based sensor showed the best linearity and high humidity sensitivity over a wide range of the humidity range (11–95% RH). Its impedance changed nearly four orders of magnitude and the response time was about 1.6 s. Humidity sensing mechanism was discussed in detail.

KW - Cobalt oxyhydroxide

KW - Humidity sensing

KW - Mesoporous

KW - Sensing mechanism

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DO - 10.1016/j.snb.2018.10.058

M3 - 文章

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SN - 0925-4005

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JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

ER -

Humidity sensing performance of mesoporous CoO(OH) synthesized via one-pot hydrothermal method

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Keywords

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