Exfoliated molybdenum disulfide nanosheet networks as sensing materials for nitrogen dioxide detection

Simple item page
dc.contributor.authorUrs, Kusumaen
dc.contributor.authorCarey, Tianen
dc.contributor.authorTsetseris, Leonidasen
dc.contributor.authorLiu, Shixinen
dc.contributor.authorSynnatschke, Kevinen
dc.contributor.authorSofer, Zdeněken
dc.contributor.authorColeman, Jonathan N.en
dc.contributor.authorWenger, John Charlesen
dc.contributor.authorBiswas, Subhajiten
dc.contributor.authorHolmes, Justin D.en
dc.contributor.funderHorizon 2020en
dc.contributor.funderEuropean Commissionen
dc.contributor.funderDeutsche Forschungs Gemeinschaften
dc.contributor.funderEuropen Research Councilen
dc.contributor.funderEuropean Regional Development Funden
dc.date.accessioned2025-05-07T14:11:55Z
dc.date.available2025-05-07T14:11:55Z
dc.date.issued2025-01-24en
dc.description.abstractNitrogen dioxide (NO2) is a gaseous air pollutant linked to respiratory and cardiovascular diseases and environmental problems such as acid rain and tropospheric ozone formation. Reference instruments for measuring NO2 are expensive, highlighting the need to develop low cost sensor technologies for wider scale monitoring of this critical pollutant. Here, we report the development of a scalable sensor using electrochemically exfoliated 2D molybdenum disulfide (MoS2) networks. The sensor can detect a wide range of NO2 concentrations at room temperature, with an experimental limit of detection (LOD) as low as 150 ppb and a theoretical LOD of 1.9 parts per quadrillion (ppq) in dry air. The sensor exhibited approximately 90% response to 1 ppm of NO2 within 10 min of exposure. UV irradiation significantly enhanced the sensor’s recovery time, reducing it from 20 min to less than 2 min. Evaluation of the sensor within a large (∼6.5 m3) atmospheric simulation chamber yielded a similar response and recovery time performance, opening the opportunity for further tests in the chamber under various conditions. Finally, using Density Functional Theory (DFT) calculations, we identified key atomic-scale structures and processes highlighting the importance of electrochemically exfoliated sulfur-deficient MoS2 for sensitive room temperature NO2 detection.en
dc.description.sponsorshipDeutsche Forschungs Gemeinschaft (SY 217/1-1); Europen Research Council (LL2101); European Regional Development Fund (CZ.02.1.01/0.0/0.0/15_003/0000444)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationUrs, K., Carey, T., Tsetseris, L., Liu, S., Synnatschke, K., Sofer, Z., Coleman, J. N., Wenger, J. C., Biswas, S. and Holmes, J. D. (2025) 'Exfoliated molybdenum disulfide nanosheet networks as sensing materials for nitrogen dioxide detection', ACS Applied Nano Materials 8(5), pp. 2141–2152. https://doi.org/10.1021/acsanm.4c05066en
dc.identifier.doi10.1021/acsanm.4c05066en
dc.identifier.endpage2152en
dc.identifier.issn2574-0970en
dc.identifier.issn2574-0970en
dc.identifier.issued5en
dc.identifier.journaltitleACS Applied Nano Materialsen
dc.identifier.startpage2141en
dc.identifier.urihttps://hdl.handle.net/10468/17401
dc.identifier.volume8en
dc.language.isoenen
dc.publisherAmerican Chemical Societyen
dc.relation.ispartofACS Applied Nano Materialsen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::RIA/899282/EU/Fundamental Breakthrough in Detection of Atmospheric Free Radicals/RADICALen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::MSCA-IF-EF-ST/101030735/EU/Manufacturing Of Versatile Electronics/MOVEen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/HE::HORIZON-RIA/101135196/EU/Developing New 2D Materials and Heterostructures for Printed Digital Devices/2D-PRINTABLEen
dc.rights© 2025, the Authors. Published by American Chemical Society. This article is licensed under the CC-BY 4.0 license.en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectMoS2en
dc.subjectPET substrateen
dc.subjectElectrochemical exfoliationen
dc.subjectNO2 sensingen
dc.subjectUV light and DFTen
dc.titleExfoliated molybdenum disulfide nanosheet networks as sensing materials for nitrogen dioxide detectionen
dc.typeArticle (peer-reviewed)en
dc.typejournal-articleen
oaire.citation.issue5en
oaire.citation.volume8en
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
urs-et-al-2025-exfoliated-molybdenum-disulfide-nanosheet-networks-as-sensing-materials-for-nitrogen-dioxide-detection.pdf
Size:
4.24 MB
Format:
Adobe Portable Document Format
Description:
Published Version
Download
Thumbnail Image
Name:
an4c05066_si_001.pdf
Size:
6.45 MB
Format:
Adobe Portable Document Format
Description:
Supporting Information
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Chemistry - Journal Articles
Environmental Research Institute - Journal Articles