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Issue 33, 2017
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Fabrication of a one-dimensional tube-in-tube polypyrrole/tin oxide structure for highly sensitive DMMP sensor applications

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Abstract

Detection of toxic gases is of great importance for protection against chemical weapons. In particular, organophosphates, such as sarin, damage nerve function and are fatal inhibitors of acetylcholinesterase. Therefore, simple and enhanced technologies for the detection of organophosphates are needed. Herein, we report the fabrication of a chemiresistive gas sensor based on a polypyrrole (PPy)-coated SnO2 tube-in-tube structure that was highly sensitive (0.05 ppb) and selective toward dimethyl methylphosphonate (DMMP), which is a simulant of organophosphates. The complex tube-in-tube structure was fabricated using a single-nozzle electrospinning method with two mixed solvents. Vapor deposition polymerization (VDP) was used to form a thin PPy layer on the surface of the SnO2 tube-in-tube structure without any aggregation. Our new synthetic methodology promises to be an effective approach for fabricating organic/inorganic complex tubular structures for future sensing technologies.

Graphical abstract: Fabrication of a one-dimensional tube-in-tube polypyrrole/tin oxide structure for highly sensitive DMMP sensor applications

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Supplementary files

Article information


Submitted
29 Mar 2017
Accepted
18 Jul 2017
First published
18 Jul 2017

J. Mater. Chem. A, 2017,5, 17335-17340
Article type
Paper

Fabrication of a one-dimensional tube-in-tube polypyrrole/tin oxide structure for highly sensitive DMMP sensor applications

J. Jun, J. S. Lee, D. H. Shin, J. Oh, W. Kim, W. Na and J. Jang, J. Mater. Chem. A, 2017, 5, 17335
DOI: 10.1039/C7TA02725G

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