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Selective sensing of 2,4,6-trinitrotoluene and triacetone triperoxide using carbon/boron nitride heteronanotubes
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Algharagholy, Laith A., Sadeghi, Hatef and Al-Backri, Amaal A. (2021) Selective sensing of 2,4,6-trinitrotoluene and triacetone triperoxide using carbon/boron nitride heteronanotubes. Materials Today Communications, 28 . 102739. doi:10.1016/j.mtcomm.2021.102739 ISSN 2352-4928.
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Official URL: http://dx.doi.org/10.1016/j.mtcomm.2021.102739
Abstract
The detection of reactive compounds represents a significant challenge. Here we demonstrate that heteronanotubes formed by covalently bonded carbon (CNT) and boron nitride (BN) nanotubes can be used to selectively sense trinitrotoluene (TNT) and triacetone triperoxide (TATP). We show that the energy band gap can be created and tuned in carbon/boron nitride (C/BN) heteronanotubes. Once TNT or TATP is physisorbed on C/BN heteronanotubes, new resonances are formed within the energy gap of heteronanotubes. Crucially, transport resonances associated with TNT are formed above the Fermi level and are due to nitro group whereas TATP resonances happen to be below the Fermi level. Consequently, a negative Seebeck coefficient is expected for C/BN heteronanotubes devices in the presence of TNT in contrast to a positive Seebeck coefficient in the presence of TATP. This can be used for selective sensing of these species.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Journal or Publication Title: | Materials Today Communications | ||||||||
Publisher: | Elsevier Ltd | ||||||||
ISSN: | 2352-4928 | ||||||||
Official Date: | September 2021 | ||||||||
Dates: |
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Volume: | 28 | ||||||||
Article Number: | 102739 | ||||||||
DOI: | 10.1016/j.mtcomm.2021.102739 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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