Adsorption Kinetics of NO2 Gas on Oxyfluorinated Graphene Film | Sciact - CRIS-system of Boreskov Institute of Catalysis

Adsorption Kinetics of NO2 Gas on Oxyfluorinated Graphene Film Full article

Journal

PCCP: Physical Chemistry Chemical Physics
ISSN: 1463-9076 , E-ISSN: 1463-9084

Output data

Year: 2023, Volume: 25, Number: 3, Pages: 2084-2089 Pages count : 6 DOI: 10.1039/d2cp04926k

Tags

FLUORINATED GRAPHENE; OXIDE; FUNCTIONALIZATION; SENSORS; LAYERS; WATER

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
2	Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, 5, Acad. Lavrentiev ave., Novosibirsk 630090, Russia

Funding (2)

1	Russian Foundation for Basic Research	19-32-60012
2	Ministry of Science and Higher Education of the Russian Federation	FWUZ-2021-0006 (121031700314-5)

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.

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 AN PMID OpenAlex

Submitted:	Oct 21, 2022
Accepted:	Dec 16, 2022
Published online:	Dec 23, 2022
Published print:	Jan 21, 2023

Web of science:	WOS:000901410100001
Scopus:	2-s2.0-85144847341
Elibrary:	53903981
Chemical Abstracts:	2022:3180165
PMID:	36562266
OpenAlex:	W4312113380

DB	Citing
Web of science	5
Elibrary	3
OpenAlex	7
Scopus	7