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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Thermodynamic stabilization of nanostructured alpha-Ni1-xCox(OH)(2) for high efficiency batteries and devices

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Martins, Paulo Roberto [1] ; Toma, Sergio Hiroshi [1] ; Nakamura, Marcelo [1] ; Toma, Henrique Eisi [1] ; Araki, Koiti [1]
Total Authors: 5
[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

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