| Texto completo | |
| Autor(es): |
Aragon, M. J.
[1]
;
Ortiz, G. F.
[1]
;
Lavela, P.
[1]
;
Tirado, J. L.
[1]
;
Oliveira, J. D. C.
[2]
;
Motta, F. V.
[2]
;
Bomio, M. R. D.
[2]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Univ Cordoba, Inst Univ Quim Fina & Nanoquim, Dept Quim Inorgan & Ingn Quim, Edificio Marie Curie, Campus Rabanales, E-14071 Cordoba - Spain
[2] Univ Fed Rio Grande do Norte, Dept Mat Engn, LSQM Lab Chem Synth Mat, POB 1524, BR-59078900 Natal, RN - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Alloys and Compounds; v. 789, p. 1035-1045, JUN 15 2019. |
| Citações Web of Science: | 0 |
| Resumo | |
Several P2-Na2/3Ni1/3Mn2/3O2 layered oxides have been prepared by a modified synthesis procedure using guanidine hydrochloride as a soft template. X-ray diffraction patterns will reveal a decrease of both crystallite size and strain for guanidine hydrochloride treated samples, favoring sodium accessibility at the electrode/electrolyte interface. Also, guanidine hydrochloride promotes anisotropic particles for intermediate amounts. This specific morphology may contribute to a partial suppression of the P2-O2 phase transition. Galvanostatic tests at different rates and potential windows will evidence better capacity retention and low charge-discharge hysteresis for NaNMO-2% in close relationship with the low internal resistance values at the electrode-electrolyte interphase and apparent diffusion coefficients determined by impedance spectroscopy. A performing full sodium-ion cell will demonstrate the reliability of this material as an electrode for Na-ion cells. (C) 2019 Elsevier B.V. All rights reserved. (AU) | |
| Processo FAPESP: | 08/57872-1 - Instituto nacional de ciencias dos materiais em nanotecnologia |
| Beneficiário: | Elson Longo da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais |
| Beneficiário: | Elson Longo da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |