High precision NH3 sensing using network nano-sheet Co3O4 arrays based sensor at room temperature

Zhijie Li; Zhijie Lin; Ningning Wang; Junqiang Wang; Wei Liu; Kai Sun; Yong Qing Fu; Zhiguo Wang

doi:10.1016/j.snb.2016.05.063

High precision NH3 sensing using network nano-sheet Co3O4 arrays based sensor at room temperature

Zhijie Li, Zhijie Lin, Ningning Wang, Junqiang Wang, Wei Liu, Kai Sun, Yong Qing Fu, Zhiguo Wang

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Abstract

Network nano-sheet arrays of Co3O4 for high precision NH3 sensing application were prepared on alumina tube using a facile hydrothermal process without template or surfactant, and their morphology, nanostructures and NH3 gas sensing performance were investigated. The prepared nano-sheet Co3O4 arrays showed a network structure with an average sheet thickness of 39.5 nm. Detailed structural analysis confirmed that the synthesized Co3O4 nano-sheets were consisted of nanoparticles with an average diameter of 20.0 nm. NH3 gas sensor based on these network Co3O4 nano-sheet arrays showed a low detection limit (0.2 ppm), rapid response/recovery time (9 s/134 s for 0.2 ppm NH3), good reproducibility and long-term stability for NH3 detection at room temperature.

Original language	English
Pages (from-to)	222-231
Journal	Sensors and Actuators B: Chemical
Volume	235
Early online date	13 May 2016
DOIs	https://doi.org/10.1016/j.snb.2016.05.063
Publication status	Published - 1 Nov 2016

Keywords

Co3O4
Nano-sheet array
Hydrothermal
NH3 gas
Gas sensor

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10.1016/j.snb.2016.05.063

Sens Actuat B High precision NH3 sensing using network nano-sheet Co3O4 arrays based sensor at room temperature final versionAccepted author manuscript, 864 KB

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title = "High precision NH3 sensing using network nano-sheet Co3O4 arrays based sensor at room temperature",

abstract = "Network nano-sheet arrays of Co3O4 for high precision NH3 sensing application were prepared on alumina tube using a facile hydrothermal process without template or surfactant, and their morphology, nanostructures and NH3 gas sensing performance were investigated. The prepared nano-sheet Co3O4 arrays showed a network structure with an average sheet thickness of 39.5 nm. Detailed structural analysis confirmed that the synthesized Co3O4 nano-sheets were consisted of nanoparticles with an average diameter of 20.0 nm. NH3 gas sensor based on these network Co3O4 nano-sheet arrays showed a low detection limit (0.2 ppm), rapid response/recovery time (9 s/134 s for 0.2 ppm NH3), good reproducibility and long-term stability for NH3 detection at room temperature.",

keywords = "Co3O4, Nano-sheet array, Hydrothermal, NH3 gas, Gas sensor",

author = "Zhijie Li and Zhijie Lin and Ningning Wang and Junqiang Wang and Wei Liu and Kai Sun and Fu, \{Yong Qing\} and Zhiguo Wang",

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doi = "10.1016/j.snb.2016.05.063",

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T1 - High precision NH3 sensing using network nano-sheet Co3O4 arrays based sensor at room temperature

AU - Li, Zhijie

AU - Lin, Zhijie

AU - Wang, Ningning

AU - Wang, Junqiang

AU - Liu, Wei

AU - Sun, Kai

AU - Fu, Yong Qing

AU - Wang, Zhiguo

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Network nano-sheet arrays of Co3O4 for high precision NH3 sensing application were prepared on alumina tube using a facile hydrothermal process without template or surfactant, and their morphology, nanostructures and NH3 gas sensing performance were investigated. The prepared nano-sheet Co3O4 arrays showed a network structure with an average sheet thickness of 39.5 nm. Detailed structural analysis confirmed that the synthesized Co3O4 nano-sheets were consisted of nanoparticles with an average diameter of 20.0 nm. NH3 gas sensor based on these network Co3O4 nano-sheet arrays showed a low detection limit (0.2 ppm), rapid response/recovery time (9 s/134 s for 0.2 ppm NH3), good reproducibility and long-term stability for NH3 detection at room temperature.

AB - Network nano-sheet arrays of Co3O4 for high precision NH3 sensing application were prepared on alumina tube using a facile hydrothermal process without template or surfactant, and their morphology, nanostructures and NH3 gas sensing performance were investigated. The prepared nano-sheet Co3O4 arrays showed a network structure with an average sheet thickness of 39.5 nm. Detailed structural analysis confirmed that the synthesized Co3O4 nano-sheets were consisted of nanoparticles with an average diameter of 20.0 nm. NH3 gas sensor based on these network Co3O4 nano-sheet arrays showed a low detection limit (0.2 ppm), rapid response/recovery time (9 s/134 s for 0.2 ppm NH3), good reproducibility and long-term stability for NH3 detection at room temperature.

KW - Co3O4

KW - Nano-sheet array

KW - Hydrothermal

KW - NH3 gas

KW - Gas sensor

UR - https://www.scopus.com/pages/publications/84990855903

U2 - 10.1016/j.snb.2016.05.063

DO - 10.1016/j.snb.2016.05.063

M3 - Article

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JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

ER -

High precision NH3 sensing using network nano-sheet Co3O4 arrays based sensor at room temperature

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Keywords

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