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Research Article | Open Access

Room-temperature chlorine gas sensor based on CdSnO3 synthesized by hydrothermal process

Xiaohua ZHAO, Zhenzhen LI, Xiangdong LOU*( ), Meng LI, Ning ZHANG
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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Abstract

The perovskite-structure CdSnO3 was obtained by calcinating CdSnO3·3H2O precursor at 550 ℃, which was synthesized by hydrothermal process at 170 ℃ for 16 h. The phase and microstructure of the obtained CdSnO3 powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The CdSnO3 powders exhibit uniformly cubic structure with side length of about 100 nm. The effects of working temperature and concentration of detected gas on the gas response were studied. The selectivity of chlorine gas against other gases and response–recovery time of the sensor were also investigated. The results reveal that the CdSnO3 gas sensor has enhanced sensing properties to 1–10 ppm chlorine gas at room temperature; the value of gas response can reach 1338.9 to 5 ppm chlorine gas. Moreover, the sensor shows good selectivity and quick response behavior (23 s) to chlorine gas, indicating its application in detecting chlorine gas at room temperature in the future.

Keywords

chlorine gas sensorroom temperatureCdSnO3hydrothermal process

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Journal of Advanced Ceramics
Volume 2 Issue 1,
March 2013
Pages 31-36
DOI: 10.1007/s40145-013-0038-0
Cite this article:
ZHAO X, LI Z, LOU X, et al. Room-temperature chlorine gas sensor based on CdSnO3 synthesized by hydrothermal process. Journal of Advanced Ceramics, 2013, 2(1): 31-36. https://doi.org/10.1007/s40145-013-0038-0

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Received: 31 October 2012
Revised: 29 December 2012
Accepted: 31 December 2012
Published: 06 April 2013
© The author(s) 2013

Open Access: This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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