<b>Synthesis and characterization of Ni0.4Co2.6O4 spinel mixed oxides powder: study of its surface properties by voltammetry, x-ray, ftir, UV-VIS-NIR spectroscopy and scanning electron microscopy</b>

Electrochemical studies were carried out on Ni<sub>0.4</sub>Co<sub>2.6</sub>O<sub>4</sub> powders prepared by sol-gel via propionic acid method using cyclic and steady state voltammetries. The oxide surface was characterized by scanning electron microscopy (SEM),...

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Bibliographic Details
Main Authors: Makhtar Guene, Abdou Aziz Diagne, Modou Fall, Modou Fall, Mor Marème Dieng, Gérard Poillerat
Format: Article
Language:English
Published: Chemical Society of Ethiopia 2005-12-01
Series:Bulletin of the Chemical Society of Ethiopia
Subjects:
Online Access:http://www.ajol.info/index.php/bcse/article/view/21126
Description
Summary:Electrochemical studies were carried out on Ni<sub>0.4</sub>Co<sub>2.6</sub>O<sub>4</sub> powders prepared by sol-gel via propionic acid method using cyclic and steady state voltammetries. The oxide surface was characterized by scanning electron microscopy (SEM), X-ray diffraction, UV-vis-NIR and FTIR spectroscopies. The results showed that the formation of homogeneous oxide with a single spinel phase occurred at 350<sup>°</sup>C. The surface redox couple NiOOH/Ni(OH)<sub>2</sub> is confined on the surface material l.
ISSN:1011-3924
1726-801X