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Title: Resistive sensing of gaseous nitrogen dioxide using a dispersion of single-walled carbon nanotubes in an ionic liquid

Abstract

Graphical abstract: Ionic liquid ([C6-mim]PF6) used as dispersant agent for SWCNTs: An investigations were carried out to find the structural quality and surface modification for sensor application. - Highlights: • An effective technique based on Ionic liquids (IL) and their use as a dispersant. • Electron microscopy and spectroscopy for structure characterization. • Covalent linkage of ILs with SWNTs and dispersion of SWCNTs. • The IL-wrapped sensing film, capable for detecting trace levels of gas. - Abstract: Single-walled carbon nanotubes (SWCNTs) were dispersed in an imidazolium-based ionic liquid (IL) and investigated in terms of structural quality, surface functionalization and inter-CNT force. Analysis by field emission electron microscopy and transmission electron microscopy shows the IL layer to coat the SWNTs, and FTIR and Raman spectroscopy confirm strong binding of the ILs to the SWNTs. Two kinds of resistive sensors were fabricated, one by drop casting of IL-wrapped SWCNTs, the other by conventional dispersion of SWCNTs. Good response and recovery to NO{sub 2} is achieved with the IL-wrapped SWCNTs material upon UV-light exposure, which is needed because decrease the desorption energy barrier to increase the gas molecule desorption. NO{sub 2} can be detected in the 1–20 ppm concentration range. The sensor ismore » not interfered by humidity due to the hydrophobic tail of PF6 (ionic liquid) that makes our sensor highly resistant to moisture.« less

Authors:
 [1];  [2];  [3];  [4];  [1]
  1. Solidstate Electronics Research Laboratory (SERL), Faculty of Engineering and Technology, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025 (India)
  2. (Russian Federation)
  3. Department of Nanoengineering, Samara State Aerospace University, 443086 Samara (Russian Federation)
  4. Center for Interdisciplinary Research in Basic Sciences (CIRBSc), Jamia Millia Islamia, Jamia Nagar, New Delhi 110025 (India)
Publication Date:
OSTI Identifier:
22581555
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 78; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CARBON NANOTUBES; CONCENTRATION RATIO; COVALENCE; DESORPTION; ELECTRON SPECTROSCOPY; FIELD EMISSION; FOURIER TRANSFORMATION; INFRARED SPECTRA; MATERIALS RECOVERY; MOLTEN SALTS; NITROGEN DIOXIDE; RAMAN SPECTROSCOPY; SENSORS; TRANSMISSION ELECTRON MICROSCOPY; ULTRAVIOLET RADIATION

Citation Formats

Mishra, Prabhash, Department of Nanoengineering, Samara State Aerospace University, 443086 Samara, Pavelyev, V.S., Patel, Rajan, and Islam, S.S., E-mail: sislam@jmi.ac.in. Resistive sensing of gaseous nitrogen dioxide using a dispersion of single-walled carbon nanotubes in an ionic liquid. United States: N. p., 2016. Web. doi:10.1016/J.MATERRESBULL.2016.02.016.
Mishra, Prabhash, Department of Nanoengineering, Samara State Aerospace University, 443086 Samara, Pavelyev, V.S., Patel, Rajan, & Islam, S.S., E-mail: sislam@jmi.ac.in. Resistive sensing of gaseous nitrogen dioxide using a dispersion of single-walled carbon nanotubes in an ionic liquid. United States. doi:10.1016/J.MATERRESBULL.2016.02.016.
Mishra, Prabhash, Department of Nanoengineering, Samara State Aerospace University, 443086 Samara, Pavelyev, V.S., Patel, Rajan, and Islam, S.S., E-mail: sislam@jmi.ac.in. 2016. "Resistive sensing of gaseous nitrogen dioxide using a dispersion of single-walled carbon nanotubes in an ionic liquid". United States. doi:10.1016/J.MATERRESBULL.2016.02.016.
@article{osti_22581555,
title = {Resistive sensing of gaseous nitrogen dioxide using a dispersion of single-walled carbon nanotubes in an ionic liquid},
author = {Mishra, Prabhash and Department of Nanoengineering, Samara State Aerospace University, 443086 Samara and Pavelyev, V.S. and Patel, Rajan and Islam, S.S., E-mail: sislam@jmi.ac.in},
abstractNote = {Graphical abstract: Ionic liquid ([C6-mim]PF6) used as dispersant agent for SWCNTs: An investigations were carried out to find the structural quality and surface modification for sensor application. - Highlights: • An effective technique based on Ionic liquids (IL) and their use as a dispersant. • Electron microscopy and spectroscopy for structure characterization. • Covalent linkage of ILs with SWNTs and dispersion of SWCNTs. • The IL-wrapped sensing film, capable for detecting trace levels of gas. - Abstract: Single-walled carbon nanotubes (SWCNTs) were dispersed in an imidazolium-based ionic liquid (IL) and investigated in terms of structural quality, surface functionalization and inter-CNT force. Analysis by field emission electron microscopy and transmission electron microscopy shows the IL layer to coat the SWNTs, and FTIR and Raman spectroscopy confirm strong binding of the ILs to the SWNTs. Two kinds of resistive sensors were fabricated, one by drop casting of IL-wrapped SWCNTs, the other by conventional dispersion of SWCNTs. Good response and recovery to NO{sub 2} is achieved with the IL-wrapped SWCNTs material upon UV-light exposure, which is needed because decrease the desorption energy barrier to increase the gas molecule desorption. NO{sub 2} can be detected in the 1–20 ppm concentration range. The sensor is not interfered by humidity due to the hydrophobic tail of PF6 (ionic liquid) that makes our sensor highly resistant to moisture.},
doi = {10.1016/J.MATERRESBULL.2016.02.016},
journal = {Materials Research Bulletin},
number = ,
volume = 78,
place = {United States},
year = 2016,
month = 6
}
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