| Titre : | Synthesis and characterization of TiO2 coated multiwalled carbon nanotubes using a sol gel method (2008) |
| Auteurs : | Sharif Hussein Sharif Zein, Auteur ; Aldo R. Boccaccini, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 N°17, Septembre 2008) |
| Article en page(s) : | p. 6598–6606 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | TiO2 coatings Multiwalled carbon nanotubes Sol-gel method |
| Résumé : |
A considerable improvement in the quality of TiO2 coatings on multiwalled carbon nanotubes (MWNTs) was obtained by introducing a three-step purification and functionalization process which combines oxidation in air followed by sulfuric acid refluxes and reoxidation in air before synthesis of the TiO2 coating by the sol−gel method. A range of techniques, including transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-rays (EDX), X-ray diffraction (XRD), Raman spectroscopy, and thermal gravimetric analysis (TGA) were applied to characterize TiO2 coated MWNTs obtained by sol−gel. TEM results showed that the MWNTs were fully and homogeneously coated with TiO2 while SEM coupled with EDX confirmed the presence of a thick layer of TiO2 coating the MWNTs. XRD and Raman spectroscopy results revealed that the crystalline structure of TiO2 on the surface of MWNTs was anatase. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie701770q |
