Selective methane chemiresistive detection using MWCNTs array decorated by metal organic framework layer
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43926956" target="_blank" >RIV/60461373:22310/23:43926956 - isvavai.cz</a>
Alternative codes found
RIV/49777513:23220/23:43968918 RIV/44555601:13440/23:43897915
Result on the web
<a href="https://doi.org/10.1016/j.surfin.2023.103105" target="_blank" >https://doi.org/10.1016/j.surfin.2023.103105</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfin.2023.103105" target="_blank" >10.1016/j.surfin.2023.103105</a>
Alternative languages
Result language
angličtina
Original language name
Selective methane chemiresistive detection using MWCNTs array decorated by metal organic framework layer
Original language description
Methane as a main component of natural gas, but simultaneously an explosive compound with pronounced negative environmental impact. Therefore, methane should be detected with high precision and reliability. However, the inertness and non-polar nature of methane is limiting its simple detection (e.g., by a chemiresistive approach) living a gap in sensing solution. In this paper, we propose a selective chemiresistive methane sensor consisting of abundant carbon materials (multi-walled carbon nanotubes - MWCNTs) with a metal-organic framework (PCN-14). The sensor is based on decorating a non-ordered array of MWCNTs with PCN-14, which is known to have high selectivity towards methane. The methane molecules are selectively entrapped by PCN-14 pores, which significantly affect the resistance of created hybrid materials. As a result, we could detect methane under air pressure and at room temperature, with a negligible false response from other interfering gases or moisture (except hydrogen or ethane). Despite its extreme simplicity, our chemiresistive sensor does not require chemical reaction or material-destructive binding/oxidation of methane. Therefore, long operation time and sensor stability were expected and experimentally confirmed. Finally, the initial resistance of MWCNTs-PСN-14 hybrid materials was adjusted to be measurable by a portative multimeter range, which makes our approach very simple and technically undemanding.
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
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA20-03913S" target="_blank" >GA20-03913S: Organic gas sensors – novel structures, electrical parameters, properties and operation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SURFACES AND INTERFACES
ISSN
2468-0230
e-ISSN
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Volume of the periodical
40
Issue of the periodical within the volume
August 2023
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
"103105/1"-8
UT code for WoS article
001032795200001
EID of the result in the Scopus database
2-s2.0-85163955915