• Citer

The effect of nanostructure on the thermal properties of fluorinated carbon nanofibres

par Disa, Elodie;Dubois, Marc Alexandre;Guérin, Katia;Kharbache, HAYAT ;Masin, Francis ;Hamwi, André
Référence Carbon, 49, 14, page (4801-4811)
Publication Publié, 2011-11

Article révisé par les pairs

• Accès en ligne
• Détails
• Contenu
• Statistiques

Résumé :

Using thermogravimetic analysis in air, the thermal properties of fluorinated carbon nanofibres have been investigated. The fluorination level, the C-F bonding, the number of structural defects and the distribution of fluorine atoms in the carbon matrix have been modified using three fluorination routes, (i) a direct process using a flux of pure molecular fluorine F 2 (dynamic process), (ii) a filling of a closed reactor by this reactive gas (static process) and (iii) controlled fluorination using the thermal decomposition of a solid fluorinating agent TbF 4. At given fluorine contents, only the location of the fluorine atoms within the nanofibre changes the thermal stability, which can be increased up to 480 °C; such improvement is obtained when the fluorinated regions are located in the outer shell (tubes). © 2011 Elsevier Ltd. All rights reserved.