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Adsorption kinetics of NO2 gas on oxyfluorinated graphene film Full article

Journal PCCP: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN: 1463-9084
Output data Year: 2023, Volume: 25, Number: 3, Pages: 2084-2089 Pages count : 6 DOI: 10.1039/d2cp04926k
Authors Sysoev Vitalii I. 1 , Yamaletdinov Ruslan D. 2 , Plyusnin Pavel E. 1 , Okotrub Alexander V. 1 , Bulusheva Lyubov G. 1
Affiliations
1 Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3 Acad. Lavrentiev ave., Novosibirsk 630090, Russia. sysoev@niic.nsc.ru.
2 Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, 5, Acad. Lavrentiev ave., Novosibirsk 630090, Russia.

Funding (2)

1 Ministry of Science and Higher Education of the Russian Federation 121031700314-5
2 Russian Foundation for Basic Research 19-32-60012

Abstract: We report the fabrication of high-performance NO2 gas sensors based on oxyfluorinated graphene (OFG) layers. At room temperature, the times of adsorption/desorption of NO2 on/from the surface of thin OFG films are less than 1200 s and can be reduced by increasing the operation temperature. The sensors are capable of detecting NO2 molecules at sub-ppm level with a sensitivity of 0.15 ppm−1 at 348 K. The temperature dependence of the rate constants shows that the simultaneous presence of a large number of fluorine- and oxygen-containing groups on the graphene surface provides the formation of low-energy sites (ΔHa < 0.1 eV) for NO2 adsorption. The combination of the high sensitivity of the sensor and a reasonable adsorption/desorption time of the analyte is promising for on-line monitoring.
Cite: Sysoev V.I. , Yamaletdinov R.D. , Plyusnin P.E. , Okotrub A.V. , Bulusheva L.G.
Adsorption kinetics of NO2 gas on oxyfluorinated graphene film
PCCP: PHYSICAL CHEMISTRY CHEMICAL PHYSICS. 2023. V.25. N3. P.2084-2089. DOI: 10.1039/d2cp04926k WOS Scopus РИНЦ OpenAlex
Dates:
Published print: Jan 18, 2023
Published online: Jan 18, 2023
Identifiers:
Web of science: WOS:000901410100001
Scopus: 2-s2.0-85144847341
Elibrary: 53903981
OpenAlex: W4312113380
Citing:
DB Citing
OpenAlex 5
Web of science 3
Scopus 5
Elibrary 2
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