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 |
|
||||
| Affiliations |
|
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
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 |