| Texto completo | |
| Autor(es): |
Menezes, Willian G.
[1]
;
Reis, Dayane M.
[1]
;
Benedetti, Tania M.
[2]
;
Oliveira, Marcela M.
[1]
;
Soares, Jaisa F.
[1]
;
Torresi, Roberto M.
[2]
;
Zarbin, Aldo J. G.
[1]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Univ Fed Parana, Dept Quim, BR-81530900 Curitiba, Parana - Brazil
[2] Univ Sao Paulo, Inst Quim, BR-05513970 Sao Paulo - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Colloid and Interface Science; v. 337, n. 2, p. 586-593, SEP 15 2009. |
| Citações Web of Science: | 49 |
| Resumo | |
Highly stable and crystalline V(2)O(5) nanoparticles with an average diameter of 15 nm have been easily prepared by thermal treatment of a bariandite-like vanadium oxide, V(10)O(24)center dot 9H(2)O. Their characterization was carried out by powder X-ray diffractometry (XRD). Fourier transform infrared (FT-IR) and Raman spectroscopies, and transmission electron microscopy (TEM). The fibrous and nanostructured film obtained by electrophoretic deposition of the V(2)O(5) nanoparticles showed good electroactivity when submitted to cyclic voltammetry in an ionic liquid-based electrolyte. The use of this film for the preparation of a nanostructured electrode led to an improvement of about 50% in discharge capacity values when compared with similar electrodes obtained by casting of a V(2)O(5) xerogel. (C) 2009 Elsevier Inc. All rights reserved. (AU) | |
| Processo FAPESP: | 05/59135-6 - Estudo eletroquímico de materiais nanoestruturados para cátodos de baterias de íon-lítio em líquidos iônicos |
| Beneficiário: | Tania Machado Benedetti |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |