Advantage of graphene fluorination instead of oxygenation for restorable adsorption of gaseous ammonia and nitrogen dioxide

Sysoev, Vitalii I.; Окотруб, А. В.; Asanov, I. P.; Гевко, П. Н.; Bulusheva, L. G.

doi:10.1016/j.carbon.2017.03.026

Cited by 34 publications

(25 citation statements)

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“…Indium was chosen as a substrate due to a good conductivity, necessary for the XPS measurements of poorly conducting samples like covalently functionalized graphene. Actually, it has been shown that the resistance of our FG and OFG films are about 2.9 and 1.4 MΩ, respectively …”

Section: Methodsmentioning

confidence: 88%

“…Previously, we have compared sensor properties of fluorinated graphene and oxyfluorinated graphene and have shown that oxygen‐containing groups provide a stronger interaction with NO 2 and NH 3 gases . In this work, we study the reactivity of three graphene derivatives, namely, GO, oxyfluorinated graphene (OFG), and fluorinated graphene (FG) toward a mixture of NO 2 and NO gases.…”

Section: Introductionmentioning

confidence: 99%

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In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

Sysoev

Окотруб

Гусельников

et al. 2017

Physica Status Solidi (b)

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Graphene derivatives are promising sensor materials due to their high surface area available for molecule adsorption and conductivity changes under the adsorbate impact. The selectivity of such materials can be tuned through the attaching of certain functional groups preferably interacting with the defined gases. In the present work, we compare the reactivity of graphene oxide, oxyfluorinated graphene, and fluorinated graphene toward gaseous NO x molecules. The interaction of the molecules with the graphenebased films was monitored by in situ X-ray photoelectron and near-edge X-ray absorption fine structure spectroscopy measurements. The spectra before and after exposure of the films to a gaseous NO x mixture detected equal concentrations of adsorbed NO 2 and NO species on graphene oxide, the preferable interaction of oxyfluorinated graphene with NO 2 and the absence of the adsorbed molecules on the fluorinated graphene surface. These results are useful for the development of selective graphene-based gas sensors.

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Section: Methodsmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

Sysoev

Окотруб

Гусельников

et al. 2017

Physica Status Solidi (b)

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“…According to this approach, fluoropolymer CYTOP coated the surface of a single-layer graphene film on a SiO 2 /Si substrate and then, it decomposed under laser irradiation, generating active fluorine radicals, which reacted with carbon lattice and formed C-F bonds, providing fluorinated graphene C 4 F [63] . Low degree of fluorination (∼1.4 at.%) was also attained through solution processing of graphite with BrF 3 in liquid Br 2 [48] , [64] . In the following, the fluorinated graphite derivative was exfoliated via thermal exfoliation [48] or by ultrasonication and centrifugal fractionation [64] .…”

Section: Synthesis Of Fluorinated Graphene and Fluorographenementioning

confidence: 97%

Chemistry, properties, and applications of fluorographene

Chronopoulos

Bakandritsos

Pykal

et al. 2017

Applied Materials Today

251

171

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“…The samples had a higher concentration of fluorine than graphite fluorinated under the same conditions. As compared to gra phite oxides, oxyfluorinated graphites showed a higher sensitivity to NH 3 gas [19,20], good water solubility [21], and better performances in primary lithium ion batteries [22].…”

Section: Calculationsmentioning

confidence: 99%

Preferred attachment of fluorine near oxygen-containing groups on the surface of double-walled carbon nanotubes

Fedoseeva

Bulusheva

Koroteev

et al. 2020

Applied Surface Science

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Double-walled carbon nanotubes Oxyfluorinatlon XPS NI!XAFS DPT Two samples of double-walled carbon nanotubes (DWCNTs), one with well-graphitized nanotube walls and another containing oxygen at outer nanotube surfaces, were fluorinated at room temperature using gaseous BrF 3 • The products were comprehensively studied using transmission electron microscopy, Raman scattering, X-ray photoelectron, and near-edge X-ray absorption fine structure spectroscopies. The experimental data found twice the concentration of sidewall fluorine in the oxygenated DWCNTs. Quantum chemical modeling supported the experimental results revealing the preferable development of CF areas near the carbon atoms bonded with oxygen-containing groups. This observation demonstrates that tuning of the physical and chemical properties of carbon nanotubes can be achieved via the controlled co-modification by fluorine and oxygen functional groups.

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Advantage of graphene fluorination instead of oxygenation for restorable adsorption of gaseous ammonia and nitrogen dioxide

Cited by 34 publications

References 50 publications

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

Chemistry, properties, and applications of fluorographene

Preferred attachment of fluorine near oxygen-containing groups on the surface of double-walled carbon nanotubes

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Advantage of graphene fluorination instead of oxygenation for restorable adsorption of gaseous ammonia and nitrogen dioxide

Cited by 34 publications

References 50 publications

In situ XPS Observation of Selective NOx Adsorption on the Oxygenated Graphene Films

In situ XPS Observation of Selective NOx Adsorption on the Oxygenated Graphene Films

Chemistry, properties, and applications of fluorographene

Preferred attachment of fluorine near oxygen-containing groups on the surface of double-walled carbon nanotubes

Contact Info

Product

Resources

About

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films