[Article] Micro-wave synthesis of carbon coated TiO2 nanoparticles for Na-ion batteries
Abstract
This collaborative work has been carried out as part of the B@tteriesIJL project and was also supported by the ORION program (Osez la Recherche par la FormatION; LUE funding ANR-20-SFRI-0009). This research involves the IJL teams “carbon materials”, “DOLPHIN: Nano-Bio-Materials for Life” and “Thin Films for Energy and Applications”. The goal is to develop new anode materials for sodium-ion battery technology.
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 both titanium and carbon precursor. Indeed, we use the residual (un)converted titanum precursor remaining after TiO2 synthesis as carbon precursor by a thermal treatment under H2 to obtain nanoparticles of TiO2 nanoparticles coated with a protective carbon layer. After characterization of the material, we use dit as anode and show a superior reversible specific capacity with TiO2@C than raw TiO2. This result highlights the importance of carbon coating addition with TiO2 nanoparticles in order to be used as negative electrode material for sodium-ion batteries.
Authors
Tanguy Soudant, Solenne Fleutot, Stéphanie Bruyère, Lucie Speyer, Sébastien Hupont, Mickaël Bolmont, Thomas Girardet, Loris Raspado, Claire Hérold, Sébastien Cahen
References
T. Soudant, S. Fleutot, S. Bruyère, L. Speyer, S. Hupont, M. Bolmont, T. Girardet, L. Raspado, C. Hérold, S. Cahen, Dalton Transactions (2024) Intercalation Compounds themed collection.
DOI
