A Flexible NO2 Gas Sensor Based on Single-Wall Carbon Nanotube Films Doped with a High Level of Nitrogen

Xiao-Han Tian; Tian-Ya Zhou; Yu Meng; Yi-Ming Zhao; Chao Shi; Peng-Xiang Hou; Li-Li Zhang; Chang Liu; Hui-Ming Cheng; Huiming Cheng

doi:10.3390/molecules27196523

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A Flexible NO2 Gas Sensor Based on Single-Wall Carbon Nanotube Films Doped with a High Level of Nitrogen

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A Flexible NO2 Gas Sensor Based on Single-Wall Carbon Nanotube Films Doped with a High Level of Nitrogen

Xiao-Han Tian, Tian-Ya Zhou, Yu Meng, Yi-Ming Zhao, Chao Shi, Peng-Xiang Hou, Li-Li Zhang, Chang Liu, Hui-Ming Cheng and Huiming Cheng

Molecules (Basel, Switzerland), Vol.27(19), p.6523

02/10/2022

DOI: https://doi.org/10.3390/molecules27196523

PMID: 36235060

Abstract

Carbon nanotubes (CNTs) are considered a promising candidate for the detection of toxic gases because of their high specific surface area and excellent electrical and mechanical properties. However, the detecting performance of CNT-based detectors needs to be improved because covalently bonded CNTs are usually chemically inert. We prepared a nitrogen-doped single-wall CNT (SWCNT) film by means of gas-phase fluorination followed by thermal annealing in NH 3 . The doped nitrogen content could be changed in the range of 2.9–9.9 at%. The N-doped SWCNT films were directly used to construct flexible and transparent gas sensors, which can work at a low voltage of 0.01 V. It was found that their NO 2 detection performance was closely related to their nitrogen content. With an optimum nitrogen content of 9.8 at%, a flexible sensor had a detection limit of 500 ppb at room temperature with good cycling ability and stability during bending.

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Title: A Flexible NO2 Gas Sensor Based on Single-Wall Carbon Nanotube Films Doped with a High Level of Nitrogen
Creators: Xiao-Han Tian - Chinese Academy of Sciences
Tian-Ya Zhou - Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
Yu Meng - Chinese Academy of Sciences
Yi-Ming Zhao - Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
Chao Shi - Chinese Academy of Sciences
Peng-Xiang Hou - Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
Li-Li Zhang - Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
Chang Liu - University of Science and Technology of China
Hui-Ming Cheng - Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
Huiming Cheng - School of Computer Science and Electronic Engineering
Publication Details: Molecules (Basel, Switzerland), Vol.27(19), p.6523
Publisher: MDPI
Date published: 02/10/2022
Grant note: XLYC2002037 / Liaoning Revitalization Talents Program ZR2019ZD49 / Basic Research Project of Natural Science Foundation of Shandong Province, China 52188101; 52072375; 52130209; 51872293 / National Natural Science Foundation of China
Identifiers: 99822549602346
Academic Unit: School of Computer Science and Electronic Engineering
Language: English
Resource Type: Journal article

A Flexible NO2 Gas Sensor Based on Single-Wall Carbon Nanotube Films Doped with a High Level of Nitrogen

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