| Full text | |
| Author(s): |
Martins, Paulo Roberto
[1]
;
Toma, Sergio Hiroshi
[1]
;
Nakamura, Marcelo
[1]
;
Toma, Henrique Eisi
[1]
;
Araki, Koiti
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Inst Quim, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | RSC ADVANCES; v. 3, n. 43, p. 20261-20266, 2013. |
| Web of Science Citations: | 5 |
| Abstract | |
The exceptional stability of FTO electrodes modified with Ni1-xCox(OH)(2) in the alpha polymorphic phase was assigned to Co(II) substitution in the Ni(II) reticule, decreasing the basal plane distances and the average grain size, as confirmed by careful analyses of their X-ray diffractograms and thermal behavior as a function of the cobalt content. That phenomenon can be assigned to thermodynamic rather than kinetic factors, reflected by much higher dehydration/dehydroxilation temperatures, as expected for the stabilization of the mixed alpha-phase hydroxides in detriment of the oxides, opening real perspectives for application of alpha-Ni1-xCox(OH)(2) in high efficiency batteries and devices. (AU) | |
| FAPESP's process: | 11/21227-8 - Development of amperometric sensors based on mixed sol of a-NiCo(OH)2 and nickel/cobalt oxides and their association with carbon nanotubes/graphene |
| Grantee: | Paulo Roberto Martins |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |