Handheld Device for Selective Benzene Sensing over Toluene and Xylene
dc.contributor.author
Weber, Ines C.
dc.contributor.author
Rüedi, Pascal
dc.contributor.author
Šot, Petr
dc.contributor.author
Güntner, Andreas
dc.contributor.author
Pratsinis, Sotiris E.
dc.date.accessioned
2022-02-14T15:09:27Z
dc.date.available
2021-12-04T04:50:35Z
dc.date.available
2022-01-19T08:13:54Z
dc.date.available
2022-02-14T15:09:27Z
dc.date.issued
2022-02-02
dc.identifier.issn
2198-3844
dc.identifier.other
10.1002/advs.202103853
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/518608
dc.identifier.doi
10.3929/ethz-b-000518608
dc.description.abstract
More than 1 million workers are exposed routinely to carcinogenic benzene, contained in various consumer products (e.g., gasoline, rubbers, and dyes) and released from combustion of organics (e.g., tobacco). Despite strict limits (e.g., 50 parts per billion (ppb) in the European Union), routine monitoring of benzene is rarely done since low-cost sensors lack accuracy. This work presents a compact, battery-driven device that detects benzene in gas mixtures with unprecedented selectivity (>200) over inorganics, ketones, aldehydes, alcohols, and even challenging toluene and xylene. This can be attributed to strong Lewis acid sites on a packed bed of catalytic WO3 nanoparticles that prescreen a chemoresistive Pd/SnO2 sensor. That way, benzene is detected down to 13 ppb with superior robustness to relative humidity (RH, 10-80%), fulfilling the strictest legal limits. As proof of concept, benzene is quantified in indoor air in good agreement (R-2 >= 0.94) with mass spectrometry. This device is readily applicable for personal exposure assessment and can assist the implementation of low-emission zones for sustainable environments.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
aromatics
en_US
dc.subject
benzene sensing
en_US
dc.subject
electronics
en_US
dc.subject
environmental
en_US
dc.subject
gas sensors
en_US
dc.subject
nanotechnology
en_US
dc.title
Handheld Device for Selective Benzene Sensing over Toluene and Xylene
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2021-11-27
ethz.journal.title
Advanced Science
ethz.journal.volume
9
en_US
ethz.journal.issue
4
en_US
ethz.journal.abbreviated
Adv. Sci.
ethz.pages.start
2103853
en_US
ethz.size
9 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Integrated system for in operando characterization and development of portable breath analyzers
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Weinheim
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02668 - Inst. f. Energie- und Verfahrenstechnik / Inst. Energy and Process Engineering::03510 - Pratsinis, Sotiris E. / Pratsinis, Sotiris E.
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::09794 - Güntner, Andreas / Güntner, Andreas
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02668 - Inst. f. Energie- und Verfahrenstechnik / Inst. Energy and Process Engineering::03510 - Pratsinis, Sotiris E. / Pratsinis, Sotiris E.
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::09794 - Güntner, Andreas / Güntner, Andreas
ethz.grant.agreementno
170729
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
R'Equip
ethz.date.deposited
2021-12-04T04:52:22Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-02-14T15:09:33Z
ethz.rosetta.lastUpdated
2023-02-07T00:13:56Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
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Journal Article [133585]