An innovative synthesis of carbon-coated TiO 2 nanoparticles as host for Na + intercalation for sodium-ion batteries - Archive ouverte HAL
Article Dans Une Revue Dalton Transactions Année : 2024

An innovative synthesis of carbon-coated TiO 2 nanoparticles as host for Na + intercalation for sodium-ion batteries

S. Fleutot
S. Bruyere
Lucie Speyer
Sebastien Hupont
Mickaël Bolmont
Thomas Girardet
Claire Hérold
Sébastien Cahen
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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.

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hal-04568584 , version 1 (05-05-2024)

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Tanguy Soudant, S. Fleutot, S. Bruyere, Lucie Speyer, Sebastien Hupont, et al.. An innovative synthesis of carbon-coated TiO 2 nanoparticles as host for Na + intercalation for sodium-ion batteries. Dalton Transactions, 2024, 53 (21), pp.9112-9119. ⟨10.1039/D4DT00459K⟩. ⟨hal-04568584⟩
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