An innovative synthesis of carbon-coated TiO 2 nanoparticles as host for Na + intercalation for sodium-ion batteries
Résumé
In this work, an innovative route to synthesize anatase TiO2@C composite is presented. The synthesis was conducted by a soft chemistry microwave-assisted method using titanium(IV) butoxide as titanium precursor. The residual (un)converted titanum precursor remaining after TiO2synthesis was used as carbon precursor and thermally treated under H2 to obtain nanoparticles of TiO2@C composite. We showed a superior reversible specific capacity with TiO2@C (120 mAh.g-1 at C/20 rate, 3rd cycle) than pristinne TiO2 (66.5 mAh.g-1 at C/20 rate, 3rd cycle), in agreement with the importance of carbon coating addition with TiO2 nanoparticles as negative electrode material for sodium-ion batteries.
Domaines
Chimie| Origine | Fichiers produits par l'(les) auteur(s) |
|---|---|
| Licence |
