Cu2O Nanowire Chemiresistors for Detection of Organophosphorus CWA Simulants
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F25%3A43933244" target="_blank" >RIV/60461373:22340/25:43933244 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2079-9292/14/17/3478" target="_blank" >https://www.mdpi.com/2079-9292/14/17/3478</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/electronics14173478" target="_blank" >10.3390/electronics14173478</a>
Alternative languages
Result language
angličtina
Original language name
Cu2O Nanowire Chemiresistors for Detection of Organophosphorus CWA Simulants
Original language description
Rapid on-site detection of chemical warfare agents (CWAs) is vital for security and environmental monitoring. In this work, copper(I) oxide (Cu<inf>2</inf>O) nanowire (NW) chemiresistors were investigated as gas sensors for low-concentration organophosphorus chemical warfare agent (CWA) simulants. The NWs were hydrothermally synthesized and deposited onto microheater platforms, enabling them to operate at elevated working temperatures. Their sensing performance was tested against a range of vapor-phase simulants, including dimethyl methylphosphonate (DMMP), triethyl phosphate (TEP), diethyl ethylphosphonate (DEEP), diphenyl phosphoryl chloride (DPPCl), parathion, diethyl phosphite (DEP), diethyl adipate (DEA), and cyanogen chloride (ClCN). Fully oxidized P(V) simulants (DMMP, DEEP, TEP) produced modest, predominantly reversible responses (~3–6% RR). On the contrary, DPPCl and DEP induced the strongest relative responses (RR −94.67% and >200%, respectively), accompanied by irreversible surface modification as revealed by SEM and EDS. ClCN produced a substantial but reversible negative response (RR −9.5%), consistent with transient oxidative interactions. Surface poisoning was confirmed after exposure to DEP and DPPCl, which left phosphorus or chlorine residues on the Cu<inf>2</inf>O surface. These results highlight both the promise and limitations of Cu<inf>2</inf>O NW chemiresistors for selective CWA detection. © 2025 by the authors.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10200 - Computer and information sciences
Result continuities
Project
<a href="/en/project/EH22_008%2F0004596" target="_blank" >EH22_008/0004596: Sensors and Detectors for Future Information Society</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Electronics
ISSN
2079-9292
e-ISSN
2079-9292
Volume of the periodical
14
Issue of the periodical within the volume
17
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
3478
UT code for WoS article
001571300900001
EID of the result in the Scopus database
2-s2.0-105015668322