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Dehydration of Alginic Acid Cryogel by TiCl4 vapor: Direct Access to Mesoporous TiO2 @C Nanocomposites and Their Performance in Lithium-Ion Batteries.
Kim, Sanghoon; De Bruyn, Mario; Alauzun, Johan G; Louvain, Nicolas; Brun, Nicolas; Macquarrie, Duncan J; Stievano, Lorenzo; Mutin, P Hubert; Monconduit, Laure; Boury, Bruno.
Afiliación
  • Kim S; Institut Charles Gerhardt Montpellier, UMR 5253 Univ. Montpellier-CNRS-ENSCM, Montpellier, France.
  • De Bruyn M; Green Chemistry Centre of Excellence, University of York, York, North Yorkshire, YO10, 5DD, UK.
  • Alauzun JG; Institut Charles Gerhardt Montpellier, UMR 5253 Univ. Montpellier-CNRS-ENSCM, Montpellier, France.
  • Louvain N; Institut Charles Gerhardt Montpellier, UMR 5253 Univ. Montpellier-CNRS-ENSCM, Montpellier, France.
  • Brun N; Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS, FR3459, 33 Rue Saint Leu, 80039, Amiens Cedex, France.
  • Macquarrie DJ; Institut Charles Gerhardt Montpellier, UMR 5253 Univ. Montpellier-CNRS-ENSCM, Montpellier, France.
  • Stievano L; Green Chemistry Centre of Excellence, University of York, York, North Yorkshire, YO10, 5DD, UK.
  • Mutin PH; Institut Charles Gerhardt Montpellier, UMR 5253 Univ. Montpellier-CNRS-ENSCM, Montpellier, France.
  • Monconduit L; Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS, FR3459, 33 Rue Saint Leu, 80039, Amiens Cedex, France.
  • Boury B; Institut Charles Gerhardt Montpellier, UMR 5253 Univ. Montpellier-CNRS-ENSCM, Montpellier, France.
ChemSusChem ; 12(12): 2660-2670, 2019 Jun 21.
Article en En | MEDLINE | ID: mdl-30950578
A new strategy for the synthesis of mesoporous TiO2 @C nanocomposites through the direct mineralization of seaweed-derived alginic acid cryogel by TiCl4 through a solid/vapor reaction pathway is presented. In this synthesis, alginic acid cryogel can have multiple roles; i) mesoporous template, ii) carbon source, and iii) oxygen source for the TiO2 precursor, TiCl4 . The resulting TiO2 @alginic acid composite was transformed either into pure mesoporous TiO2 by calcination or into mesoporous TiO2 @C nanocomposites by pyrolysis. By comparing with a nonporous TiO2 @C composite, the importance of the mesopores on the performance of electrodes for lithium-ion batteries based on mesoporous TiO2 @C composite was clearly evidenced. In addition, the carbon matrix in the mesoporous TiO2 @C nanocomposite also showed electrochemical activity versus lithium ions, providing twice the capacity of pure mesoporous TiO2 or alginic acid-derived mesoporous carbon (A600). Given the simplicity and environmental friendliness of the process, the mesoporous TiO2 @C nanocomposite could satisfy the main prerequisites of green and sustainable chemistry while showing improved electrochemical performance as a negative electrode for lithium-ion batteries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ChemSusChem Asunto de la revista: QUIMICA / TOXICOLOGIA Año: 2019 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ChemSusChem Asunto de la revista: QUIMICA / TOXICOLOGIA Año: 2019 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Alemania