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Article Dans Une Revue Journal of Colloid and Interface Science Année : 2013

Enhanced concentration of dispersed carbon nanofibres in organic solvents through their functionalization by fluorination

Nadiège Nomède-Martyr
MI
Elodie Disa
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MI
Katia Guérin
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MI
Marc Dubois
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  • PersonId : 923103
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André Hamwi
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MI

Résumé

Covalent functionalization through pure molecular gaseous fluorinationhas been applied on carbon nanofibres. Nuclear magnetic resona nce and thermal gravimetric analysis investigations have been per- formed on fluorinated carbon nanofibres in order to determine the chemical and thermal stability of the C-F bonding. The high covalency obtained allows no significantmodificationof the physicochemical nanostructure of fluorinatedcarbon nanofibresafter sonification.Such modificationof surface chemistry leads to a high increase in the limit concentr ation of dispersed carbon nanofibresin organic solvents without surfactant. An exciting maximum of 570 mg L 1 of fluorinated nanofibrescan be homogeneously dispersed in N-methylpyrrolidone, whereas 310 mg L 1 is the maximum for non-fluorinated carbon nanofibres. In order to understand such dispersibility differences, Hildebrand and Hansen solubility the- ory has been used.
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Dates et versions

hal-00817003 , version 1 (23-04-2013)

Identifiants

  • HAL Id : hal-00817003 , version 1

Citer

Nadiège Nomède-Martyr, Elodie Disa, Katia Guérin, Marc Dubois, Lawrence Frézet, et al.. Enhanced concentration of dispersed carbon nanofibres in organic solvents through their functionalization by fluorination. Journal of Colloid and Interface Science, 2013, 400, pp.11-17. ⟨hal-00817003⟩
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