A Highly Sensitive and Room Temperature CNTs/SnO(2)/CuO Sensor for H(2)S Gas Sensing Applications

Gas sensors based on tin dioxide-carbon nanotube composite films were fabricated by a simple inexpensive sol-gel spin-coating method using PEG400 as a solvent. Nanostructured copper was coated on CNTs/SnO(2) film, and then copper was transformed into copper oxide at 250 °C. Resistivity of the final...

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Detalles Bibliográficos
Autores principales: Zhao, Yang, Zhang, Jijun, Wang, Yan, Chen, Zexiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2020
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7021873/
https://www.ncbi.nlm.nih.gov/pubmed/32060823
http://dx.doi.org/10.1186/s11671-020-3265-7
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author Zhao, Yang
Zhang, Jijun
Wang, Yan
Chen, Zexiang
author_facet Zhao, Yang
Zhang, Jijun
Wang, Yan
Chen, Zexiang
author_sort Zhao, Yang
collection PubMed
description Gas sensors based on tin dioxide-carbon nanotube composite films were fabricated by a simple inexpensive sol-gel spin-coating method using PEG400 as a solvent. Nanostructured copper was coated on CNTs/SnO(2) film, and then copper was transformed into copper oxide at 250 °C. Resistivity of the final composite films is highly sensitive to the presence of H(2)S, which became easily attached or detached at room temperature. The response and recovery time of the sensor are 4 min and 10 min, and the value of sensitivity is 4.41, respectively. Meanwhile, the CNTs/SnO(2)/CuO sensor also has low detection limit, high selectivity toward H(2)S, and stable performance with different concentrations of H(2)S.
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spelling pubmed-70218732020-02-28 A Highly Sensitive and Room Temperature CNTs/SnO(2)/CuO Sensor for H(2)S Gas Sensing Applications Zhao, Yang Zhang, Jijun Wang, Yan Chen, Zexiang Nanoscale Res Lett Nano Express Gas sensors based on tin dioxide-carbon nanotube composite films were fabricated by a simple inexpensive sol-gel spin-coating method using PEG400 as a solvent. Nanostructured copper was coated on CNTs/SnO(2) film, and then copper was transformed into copper oxide at 250 °C. Resistivity of the final composite films is highly sensitive to the presence of H(2)S, which became easily attached or detached at room temperature. The response and recovery time of the sensor are 4 min and 10 min, and the value of sensitivity is 4.41, respectively. Meanwhile, the CNTs/SnO(2)/CuO sensor also has low detection limit, high selectivity toward H(2)S, and stable performance with different concentrations of H(2)S. Springer US 2020-02-14 /pmc/articles/PMC7021873/ /pubmed/32060823 http://dx.doi.org/10.1186/s11671-020-3265-7 Text en © The Author(s). 2020 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Zhao, Yang
Zhang, Jijun
Wang, Yan
Chen, Zexiang
A Highly Sensitive and Room Temperature CNTs/SnO(2)/CuO Sensor for H(2)S Gas Sensing Applications
title A Highly Sensitive and Room Temperature CNTs/SnO(2)/CuO Sensor for H(2)S Gas Sensing Applications
title_full A Highly Sensitive and Room Temperature CNTs/SnO(2)/CuO Sensor for H(2)S Gas Sensing Applications
title_fullStr A Highly Sensitive and Room Temperature CNTs/SnO(2)/CuO Sensor for H(2)S Gas Sensing Applications
title_full_unstemmed A Highly Sensitive and Room Temperature CNTs/SnO(2)/CuO Sensor for H(2)S Gas Sensing Applications
title_short A Highly Sensitive and Room Temperature CNTs/SnO(2)/CuO Sensor for H(2)S Gas Sensing Applications
title_sort highly sensitive and room temperature cnts/sno(2)/cuo sensor for h(2)s gas sensing applications
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7021873/
https://www.ncbi.nlm.nih.gov/pubmed/32060823
http://dx.doi.org/10.1186/s11671-020-3265-7
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