Adsorption kinetics of NO gas on oxyfluorinated graphene film
We report the fabrication of high-performance NO 2 gas sensors based on oxyfluorinated graphene (OFG) layers. At room temperature, the times of adsorption/desorption of NO 2 on/from the surface of thin OFG films are less than 1200 s and can be reduced by increasing the operation temperature. The sen...
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| Veröffentlicht in: | Physical chemistry chemical physics : PCCP 2023-01, Vol.25 (3), p.284-289 |
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| container_title | Physical chemistry chemical physics : PCCP |
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| creator | Sysoev, Vitalii I Yamaletdinov, Ruslan D Plyusnin, Pavel E Okotrub, Alexander V Bulusheva, Lyubov G |
| description | We report the fabrication of high-performance NO
2
gas sensors based on oxyfluorinated graphene (OFG) layers. At room temperature, the times of adsorption/desorption of NO
2
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 NO
2
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 (Δ
H
a
< 0.1 eV) for NO
2
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.
Illustration of NO
2
adsorption sites on the oxyfluorinated graphene surface. |
| doi_str_mv | 10.1039/d2cp04926k |
| format | Article |
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2
gas sensors based on oxyfluorinated graphene (OFG) layers. At room temperature, the times of adsorption/desorption of NO
2
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 NO
2
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 (Δ
H
a
< 0.1 eV) for NO
2
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.
Illustration of NO
2
adsorption sites on the oxyfluorinated graphene surface.</description><identifier>ISSN: 1463-9076</identifier><identifier>EISSN: 1463-9084</identifier><identifier>DOI: 10.1039/d2cp04926k</identifier><ispartof>Physical chemistry chemical physics : PCCP, 2023-01, Vol.25 (3), p.284-289</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Sysoev, Vitalii I</creatorcontrib><creatorcontrib>Yamaletdinov, Ruslan D</creatorcontrib><creatorcontrib>Plyusnin, Pavel E</creatorcontrib><creatorcontrib>Okotrub, Alexander V</creatorcontrib><creatorcontrib>Bulusheva, Lyubov G</creatorcontrib><title>Adsorption kinetics of NO gas on oxyfluorinated graphene film</title><title>Physical chemistry chemical physics : PCCP</title><description>We report the fabrication of high-performance NO
2
gas sensors based on oxyfluorinated graphene (OFG) layers. At room temperature, the times of adsorption/desorption of NO
2
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 NO
2
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 (Δ
H
a
< 0.1 eV) for NO
2
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.
Illustration of NO
2
adsorption sites on the oxyfluorinated graphene surface.</description><issn>1463-9076</issn><issn>1463-9084</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNpjYBAyNNAzNDC21E8xSi4wMLE0MstmYuA0NDEz1rU0sDBhgbPNzTgYuIqLswwMDAxNDY05GWwdU4rziwpKMvPzFLIz81JLMpOLFfLTFPz8FdITgaw8hfyKyrSc0vyizLzEktQUhfSixIKM1LxUhbTMnFweBta0xJziVF4ozc0g6-Ya4uyhW1ScHF9QlJmbWFQZj3CTMSF5ABSUOgs</recordid><startdate>20230118</startdate><enddate>20230118</enddate><creator>Sysoev, Vitalii I</creator><creator>Yamaletdinov, Ruslan D</creator><creator>Plyusnin, Pavel E</creator><creator>Okotrub, Alexander V</creator><creator>Bulusheva, Lyubov G</creator><scope/></search><sort><creationdate>20230118</creationdate><title>Adsorption kinetics of NO gas on oxyfluorinated graphene film</title><author>Sysoev, Vitalii I ; Yamaletdinov, Ruslan D ; Plyusnin, Pavel E ; Okotrub, Alexander V ; Bulusheva, Lyubov G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_d2cp04926k3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><creationdate>2023</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sysoev, Vitalii I</creatorcontrib><creatorcontrib>Yamaletdinov, Ruslan D</creatorcontrib><creatorcontrib>Plyusnin, Pavel E</creatorcontrib><creatorcontrib>Okotrub, Alexander V</creatorcontrib><creatorcontrib>Bulusheva, Lyubov G</creatorcontrib><jtitle>Physical chemistry chemical physics : PCCP</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sysoev, Vitalii I</au><au>Yamaletdinov, Ruslan D</au><au>Plyusnin, Pavel E</au><au>Okotrub, Alexander V</au><au>Bulusheva, Lyubov G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adsorption kinetics of NO gas on oxyfluorinated graphene film</atitle><jtitle>Physical chemistry chemical physics : PCCP</jtitle><date>2023-01-18</date><risdate>2023</risdate><volume>25</volume><issue>3</issue><spage>284</spage><epage>289</epage><pages>284-289</pages><issn>1463-9076</issn><eissn>1463-9084</eissn><abstract>We report the fabrication of high-performance NO
2
gas sensors based on oxyfluorinated graphene (OFG) layers. At room temperature, the times of adsorption/desorption of NO
2
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 NO
2
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 (Δ
H
a
< 0.1 eV) for NO
2
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.
Illustration of NO
2
adsorption sites on the oxyfluorinated graphene surface.</abstract><doi>10.1039/d2cp04926k</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1463-9076 |
| ispartof | Physical chemistry chemical physics : PCCP, 2023-01, Vol.25 (3), p.284-289 |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | Adsorption kinetics of NO gas on oxyfluorinated graphene film |
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