title: Conversion of Nanocellulose Aerogel into TiO2 and TiO2@C Nano-thorns by Direct Anhydrous Mineralization with TiCl4. Evaluation of Electrochemical Properties in Li Batteries.
abstract: Nanostructured TiO2 and TiO2@C nanocomposites were prepared by an original process combining biotemplating and mineralization of aerogels of nanofibrillated cellulose (NFC). A direct one step treatment of NFC with TiCl4 in strictly anhydrous conditions allows TiO2 formation at the outermost part of the nanofibrils while preserving their shape and size. Such TiO2@cellulose composites can be transformed into TiO2 nanotubes (TiO2-NT) by calcination in air at 600 and 900 °C, or into TiO2@C nanocomposites by pyrolysis in argon at 600 and 900 °C. Detailed characterization of these materials is reported here, along with an assessment of their performance as negative electrode materials for Li-ion batteries.
authors.affiliation: †Institut Charles Gerhardt Montpellier UMR 5253 - CMOS Pl. E. BATAILLON 34090 Montpellier, France.|‡ICG-AIME, Université Montpellier 2, Bat. 15, cc 15-02, Pl. E. Bataillon, 34095 Montpellier Cedex, France.|⊥Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France.
authors.forename: Aurélien
authors.initials: A
authors.lastname: Henry
authors.affiliation: †Institut Charles Gerhardt Montpellier UMR 5253 - CMOS Pl. E. BATAILLON 34090 Montpellier, France.
authors.forename: Sandrine
authors.initials: S
authors.lastname: Plumejeau
authors.affiliation: §Centre de Recherches sur les Macromolécules Végétales (CERMAV-CNRS), BP 53,F-38041 Grenoble Cedex 9, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Heux
authors.affiliation: ‡ICG-AIME, Université Montpellier 2, Bat. 15, cc 15-02, Pl. E. Bataillon, 34095 Montpellier Cedex, France.|⊥Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Louvain
authors.affiliation: ‡ICG-AIME, Université Montpellier 2, Bat. 15, cc 15-02, Pl. E. Bataillon, 34095 Montpellier Cedex, France.|⊥Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France.
authors.forename: Laure
authors.initials: L
authors.lastname: Monconduit
authors.affiliation: ‡ICG-AIME, Université Montpellier 2, Bat. 15, cc 15-02, Pl. E. Bataillon, 34095 Montpellier Cedex, France.|⊥Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR3459, 33 Rue Saint Leu, 80039 Amiens Cedex, France.
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Stievano
authors.affiliation: †Institut Charles Gerhardt Montpellier UMR 5253 - CMOS Pl. E. BATAILLON 34090 Montpellier, France.
authors.forename: Bruno
authors.initials: B
authors.lastname: Boury
keywords: TiO2/C composite; electrochemistry; mineralization; nanocelullose; titanium dioxide