Mesoporous anataseTiO2 Nanorods as thermally robust anode materials for Li-Ion batteries: detailed insight into the formation mechanism. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chemistry - A European Journal Année : 2013

Mesoporous anataseTiO2 Nanorods as thermally robust anode materials for Li-Ion batteries: detailed insight into the formation mechanism.

G.A. Seisenbaeva
  • Fonction : Auteur
C. Tiseanu
  • Fonction : Auteur
V.G. Pol
  • Fonction : Auteur
L. Abreg
  • Fonction : Auteur
V. G. Kessler
  • Fonction : Auteur

Résumé

Uniformly mesoporous and thermally robust anatase nanorods were produced with quantitative yield by a simple and efficient one-step approach. The mechanism of this process was revealed by insertion of Eu3+ cations from the reaction medium as luminescent probes. The obtained structure displays an unusually high porosity, an active surface area of about 300 m2g−1 and a specific capacity of 167 mA h g−1 at a C/3 rate, making it attractive as an anode electrode for Li-ion batteries. An additional attractive feature is its remarkable thermal stability; heating to 400 °C results in a decrease in the active surface area to a still relatively high value of 110 m2 g−1 with conservation of open mesoporosity. Thermal treatment at 800 °C or higher, however, causes transformation into a non-porous rutile monolith, as commonly observed with nanoscale titania.
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Dates et versions

hal-00940253 , version 1 (31-01-2014)

Identifiants

  • HAL Id : hal-00940253 , version 1

Citer

G.A. Seisenbaeva, Jean-Marie Nedelec, G. Daniel, C. Tiseanu, V. Parvulescu, et al.. Mesoporous anataseTiO2 Nanorods as thermally robust anode materials for Li-Ion batteries: detailed insight into the formation mechanism.. Chemistry - A European Journal, 2013, 19, pp.17439-17444. ⟨hal-00940253⟩
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