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Sulfophenyl-Functionalized Reduced Graphene Oxide Networks on Electrospun 3D Scaffold for Ultrasensitive NO(2) Gas Sensor

Ultrasensitive room temperature real-time NO(2) sensors are highly desirable due to potential threats on environmental security and personal respiratory. Traditional NO(2) gas sensors with highly operated temperatures (200–600 °C) and limited reversibility are mainly constructed from semiconducting...

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Detalles Bibliográficos
Autores principales: Zou, Bin, Guo, Yunlong, Shen, Nannan, Xiao, Anshan, Li, Mingjun, Zhu, Liang, Wan, Pengbo, Sun, Xiaoming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751658/
https://www.ncbi.nlm.nih.gov/pubmed/29257085
http://dx.doi.org/10.3390/s17122954
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author Zou, Bin
Guo, Yunlong
Shen, Nannan
Xiao, Anshan
Li, Mingjun
Zhu, Liang
Wan, Pengbo
Sun, Xiaoming
author_facet Zou, Bin
Guo, Yunlong
Shen, Nannan
Xiao, Anshan
Li, Mingjun
Zhu, Liang
Wan, Pengbo
Sun, Xiaoming
author_sort Zou, Bin
collection PubMed
description Ultrasensitive room temperature real-time NO(2) sensors are highly desirable due to potential threats on environmental security and personal respiratory. Traditional NO(2) gas sensors with highly operated temperatures (200–600 °C) and limited reversibility are mainly constructed from semiconducting oxide-deposited ceramic tubes or inter-finger probes. Herein, we report the functionalized graphene network film sensors assembled on an electrospun three-dimensional (3D) nanonetwork skeleton for ultrasensitive NO(2) sensing. The functional 3D scaffold was prepared by electrospinning interconnected polyacrylonitrile (PAN) nanofibers onto a nylon window screen to provide a 3D nanonetwork skeleton. Then, the sulfophenyl-functionalized reduced graphene oxide (SFRGO) was assembled on the electrospun 3D nanonetwork skeleton to form SFRGO network films. The assembled functionalized graphene network film sensors exhibit excellent NO(2) sensing performance (10 ppb to 20 ppm) at room temperature, reliable reversibility, good selectivity, and better sensing cycle stability. These improvements can be ascribed to the functionalization of graphene with electron-withdrawing sulfophenyl groups, the high surface-to-volume ratio, and the effective sensing channels from SFRGO wrapping onto the interconnected 3D scaffold. The SFRGO network-sensing film has the advantages of simple preparation, low cost, good processability, and ultrasensitive NO(2) sensing, all advantages that can be utilized for potential integration into smart windows and wearable electronic devices for real-time household gas sensors.
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spelling pubmed-57516582018-01-10 Sulfophenyl-Functionalized Reduced Graphene Oxide Networks on Electrospun 3D Scaffold for Ultrasensitive NO(2) Gas Sensor Zou, Bin Guo, Yunlong Shen, Nannan Xiao, Anshan Li, Mingjun Zhu, Liang Wan, Pengbo Sun, Xiaoming Sensors (Basel) Article Ultrasensitive room temperature real-time NO(2) sensors are highly desirable due to potential threats on environmental security and personal respiratory. Traditional NO(2) gas sensors with highly operated temperatures (200–600 °C) and limited reversibility are mainly constructed from semiconducting oxide-deposited ceramic tubes or inter-finger probes. Herein, we report the functionalized graphene network film sensors assembled on an electrospun three-dimensional (3D) nanonetwork skeleton for ultrasensitive NO(2) sensing. The functional 3D scaffold was prepared by electrospinning interconnected polyacrylonitrile (PAN) nanofibers onto a nylon window screen to provide a 3D nanonetwork skeleton. Then, the sulfophenyl-functionalized reduced graphene oxide (SFRGO) was assembled on the electrospun 3D nanonetwork skeleton to form SFRGO network films. The assembled functionalized graphene network film sensors exhibit excellent NO(2) sensing performance (10 ppb to 20 ppm) at room temperature, reliable reversibility, good selectivity, and better sensing cycle stability. These improvements can be ascribed to the functionalization of graphene with electron-withdrawing sulfophenyl groups, the high surface-to-volume ratio, and the effective sensing channels from SFRGO wrapping onto the interconnected 3D scaffold. The SFRGO network-sensing film has the advantages of simple preparation, low cost, good processability, and ultrasensitive NO(2) sensing, all advantages that can be utilized for potential integration into smart windows and wearable electronic devices for real-time household gas sensors. MDPI 2017-12-19 /pmc/articles/PMC5751658/ /pubmed/29257085 http://dx.doi.org/10.3390/s17122954 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zou, Bin
Guo, Yunlong
Shen, Nannan
Xiao, Anshan
Li, Mingjun
Zhu, Liang
Wan, Pengbo
Sun, Xiaoming
Sulfophenyl-Functionalized Reduced Graphene Oxide Networks on Electrospun 3D Scaffold for Ultrasensitive NO(2) Gas Sensor
title Sulfophenyl-Functionalized Reduced Graphene Oxide Networks on Electrospun 3D Scaffold for Ultrasensitive NO(2) Gas Sensor
title_full Sulfophenyl-Functionalized Reduced Graphene Oxide Networks on Electrospun 3D Scaffold for Ultrasensitive NO(2) Gas Sensor
title_fullStr Sulfophenyl-Functionalized Reduced Graphene Oxide Networks on Electrospun 3D Scaffold for Ultrasensitive NO(2) Gas Sensor
title_full_unstemmed Sulfophenyl-Functionalized Reduced Graphene Oxide Networks on Electrospun 3D Scaffold for Ultrasensitive NO(2) Gas Sensor
title_short Sulfophenyl-Functionalized Reduced Graphene Oxide Networks on Electrospun 3D Scaffold for Ultrasensitive NO(2) Gas Sensor
title_sort sulfophenyl-functionalized reduced graphene oxide networks on electrospun 3d scaffold for ultrasensitive no(2) gas sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751658/
https://www.ncbi.nlm.nih.gov/pubmed/29257085
http://dx.doi.org/10.3390/s17122954
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