Abstract
We have developed a simple approach for the large-scale synthesis of cobalt nitrate carbonate hydroxidehydrate (Co(CO3)0.35(NO3)0.2(OH)1.1·1.74H2O) nanowires via the hydrothermal process using sodium hydroxide and formaldehyde as mineralizers at120 °C. Theporous Co3O4 nanorods 10–30 nm in diameter and hundreds of nanometres in length have beenfabricated from the above-mentioned multicomponent nanowires by calcination at400 °C. The morphology and structure of cobalt nitrate carbonate hydroxide hydrate nanowires andCo3O4 nanorods have been characterized by transmission electron microscopy (TEM), fieldemission scanning electron microscopy (FESEM), high resolution transmission electronmicroscopy (HRTEM) and x-ray powder diffraction (XRD). Moreover, the porousCo3O4 nanorods have been applied in the negative electrode materials for lithium ion batteries,which exhibit high electrochemical performance.
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