Janus gas: reversible redox transition of Sarin enables its selective detection by an ethanol modified nanoporous SnO2 chemiresistor

Zhengfei Dai; Guotao Duan; Zhenxing Cheng; Lei Xu; Tie Li; Guangqiang Liu; Hongwen Zhang; Yue Li; Weiping Cai

doi:10.1039/C5CC01798J

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Janus gas: reversible redox transition of Sarin enables its selective detection by an ethanol modified nanoporous SnO₂ chemiresistor†

Zhengfei Dai,^a Guotao Duan,*^a Zhenxing Cheng,^b Lei Xu,^c Tie Li,^c Guangqiang Liu,^a Hongwen Zhang,^a Yue Li^a and Weiping Cai*^a

Author affiliations

* Corresponding authors

^a Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui, China
E-mail: duangt@issp.ac.cn, wpcai@issp.ac.cn

^b The No. 3 Department, Institute of Chemical Defence, Beijing, China

^c State Key Laboratory of Transducer Technology, and the Science and Technology on Micro-system Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China

Abstract

A reversible janus gas redox transition was discovered in the trace Sarin sensing process using an ethanol-aged nanoporous SnO₂ micro-chemiresistor, which was reliable to realize the identification of Sarin from other gases and even its simulant. This sensor also endows a rather low detection threshold of 6 ppb to Sarin.

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Article information

DOI: https://doi.org/10.1039/C5CC01798J
Article type: Communication
Submitted: 03 Mar 2015
Accepted: 27 Mar 2015
First published: 27 Mar 2015

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Chem. Commun., 2015,51, 8193-8196

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Janus gas: reversible redox transition of Sarin enables its selective detection by an ethanol modified nanoporous SnO₂ chemiresistor

Z. Dai, G. Duan, Z. Cheng, L. Xu, T. Li, G. Liu, H. Zhang, Y. Li and W. Cai, Chem. Commun., 2015, 51, 8193 DOI: 10.1039/C5CC01798J

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