Highly sensitive detection of explosive triacetone triperoxide by an In<sub>2</sub>O<sub>3</sub>sensor

Zhang, Wenhui; Zhang, Wei-De; Chen, Lu-Ya

doi:10.1088/0957-4484/21/31/315502

Cited by 29 publications

(9 citation statements)

References 28 publications

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“…Sensitive detection of explosive or toxic gases is an area of active research. 92,93 In terms of sensitivity and speed of detection, sensors based on carbon nanotubes and semiconducting nanowires 79,94 are far more efficient than conventional sensors based on semiconducting metal oxides ordered in thin films or thick mesoporous layers. However, devices based on carbon nanotubes or semiconducting nanowires generally suffer from high noise levels and low reproducibility due to the high statistical variations between single nanowire devices.…”

Section: Protein-responsive Electrospun Fibersmentioning

confidence: 99%

Stimuli-responsive electrospun fibers and their applications

et al. 2011

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In this critical review, an overview is given on recent advances in the development and application of stimuliresponsive electrospun nanofibers.Please check this proof carefully. Our staff will not read it in detail after you have returned it. Translation errors between word-processor files and typesetting systems can occur so the whole proof needs to be read. Please pay particular attention to: tabulated material; equations; numerical data; figures and graphics; and references. If you have not already indicated the corresponding author(s) please mark their name(s) with an asterisk. Please e-mail a list of corrections or the PDF with electronic notes attached --do not change the text within the PDF file or send a revised manuscript.Please bear in mind that minor layout improvements, e.g. in line breaking, table widths and graphic placement, are routinely applied to the final version.Please note that, in the typefaces we use, an italic vee looks like this: n, and a Greek nu looks like this: n.We will publish articles on the web as soon as possible after receiving your corrections; no late corrections will be made.Please return your final corrections, where possible within 48 hours of receipt, by e-mail to: chemsocrev@rsc.org Reprints-Electronic (PDF) reprints will be provided free of charge to the corresponding author. Enquiries about purchasing paper reprints should be addressed via: http://www.rsc.org/publishing/journals/guidelines/paperreprints/. Costs for reprints are below: Stimuli-responsive electrospun nanofibers are gaining considerable attention as highly versatile tools which offer great potential in the biomedical field. In this critical review, an overview is given on recent advances made in the development and application of stimuli-responsive fibers. The specific features of these electrospun fibers are highlighted and discussed in view of the properties required for the diverse applications. Furthermore, several novel biomedical applications are discussed and the respective advantages and shortcomings inherent to stimuli-responsive electrospun fibers are addressed (136 references).

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Section: Protein-responsive Electrospun Fibersmentioning

confidence: 99%

Stimuli-responsive electrospun fibers and their applications

et al. 2011

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“…[35][36][37][38][39] Overlayers and admixtures were created using two types of zeolite, H-Zeolite Socony Mobil (ZSM)-5 and Titanium Silicate (TS)-1. H-ZSM-5 has been shown to improve sensitivity of WO 3 sensors to NO 2 , so it was anticipated that it may do the same for molecules containing an -NO 2 group.…”

Section: Materials and Analyte Selectionmentioning

confidence: 99%

“…[3][4][5][6][7][8][9] However these detectors are expensive to run and maintain, for example a canine for explosives detection costs up to $6,000 to train and a Dept. of Security and Crime Science, University College London, 35 10 Metal oxide semiconducting gas sensors (MOS sensors) are a low cost and increasingly reliable form of vapour detector. Their ease of production and small size gives them great potential for a commercial explosives detector; however, they often lack the crucial sensitivity and selectivity to detect low vapour pressure materials such as RDX (1,3,5-trinitro-1,3,5-triazacyclohexane) or TNT (2,4,6-trinitrotoluene).…”

Section: Introductionmentioning

confidence: 99%

Detection of explosive markers using zeolite modified gas sensors

et al. 2013

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Detection of hidden explosive devices is a key priority for security and defence personnel around the globe. Electronic noses, based on metal oxide semiconductors (MOS), are a promising technology for creating inexpensive, portable and sensitive devices for such a purpose. An array of seven MOS gas sensors was fabricated by screen printing, based on WO 3 and In 2 O 3 inks. The sensors were tested against six gases, including four explosive markers: nitromethane, DMNB (2,3-dimetheyl-2,3-dinitrobutane), 2-ethylhexanol and ammonia. The gases were successfully detected with good sensitivity and selectivity from the array. Sensitivity was improved by overlaying or admixing the oxides with two zeolites, H-ZSM-5 and TS-1, and each showed improved responses to -NO 2 and -OH moieties respectively. Admixtures in particular showed promise, with excellent sensitivity and good stability to humidity. Machine learning techniques were applied to a subset of the data and could accurately classify the gases detected, even when confounding factors were introduced.

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“…Of course using electrochemical detection of TATP precursors is not a new concept [8,25,26]. The Vladimir [27] team introduced a good response with nano-spring-based sensors for gases such as TATP precursors, as well as determining conditions for In 2 O 3 [28] and WO 3 [29] but still did not achieve operation at room temperature. The application of graphene in chemical gas sensors is receiving more and more attention [30,31].…”

Section: Introductionmentioning

confidence: 99%

Detection of Triacetone Triperoxide (TATP) Precursors with an Array of Sensors Based on MoS2/RGO Composites

Sun

Duan

et al. 2019

Sensors

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Triacetone triperoxide (TATP) is a self-made explosive synthesized from the commonly used chemical acetone (C3H6O) and hydrogen peroxide (H2O2). As C3H6O and H2O2 are the precursors of TATP, their detection is very important due to the high risk of the presence of TATP. In order to detect the precursors of TATP effectively, hierarchical molybdenum disulfide/reduced graphene oxide (MoS2/RGO) composites were synthesized by a hydrothermal method, using two-dimensional reduced graphene oxide (RGO) as template. The effects of the ratio of RGO to raw materials for the synthesis of MoS2 on the morphology, structure, and gas sensing properties of the MoS2/RGO composites were studied. It was found that after optimization, the response to 50 ppm of H2O2 vapor was increased from 29.0% to 373.1%, achieving an increase of about 12 times. Meanwhile, all three sensors based on MoS2/RGO composites exhibited excellent anti-interference performance to ozone with strong oxidation. Furthermore, three sensors based on MoS2/RGO composites were fabricated into a simple sensor array, realizing discriminative detection of three target analytes in 14.5 s at room temperature. This work shows that the synergistic effect between two-dimensional RGO and MoS2 provides new possibilities for the development of high performance sensors.

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Highly sensitive detection of explosive triacetone triperoxide by an In₂O₃sensor

Cited by 29 publications

References 28 publications

Stimuli-responsive electrospun fibers and their applications

Stimuli-responsive electrospun fibers and their applications

Detection of explosive markers using zeolite modified gas sensors

Detection of Triacetone Triperoxide (TATP) Precursors with an Array of Sensors Based on MoS2/RGO Composites

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Highly sensitive detection of explosive triacetone triperoxide by an In2O3sensor

Cited by 29 publications

References 28 publications

Stimuli-responsive electrospun fibers and their applications

Stimuli-responsive electrospun fibers and their applications

Detection of explosive markers using zeolite modified gas sensors

Detection of Triacetone Triperoxide (TATP) Precursors with an Array of Sensors Based on MoS2/RGO Composites

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Product

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Highly sensitive detection of explosive triacetone triperoxide by an In₂O₃sensor