Synthesis and electrocatalytic activities of CoO nanocubes.

In this article, a hydrothermal method was developed to synthesize CoO nanocubes using hydrogen peroxide (HO) as oxidant, Co(NO)·6HO as a cobalt source. The products are characterized in detail by multiform techniques including X-ray diffraction (XRD), energy dispersive X-ray analysis (EDS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results show that the obtained products are CoO nanocubes with size ranging between 20 and 40 nm. The effects of the hydrogen peroxide concentration on the size of the products have been studied. The electrocatalytic activities of HO reduction on CoO nanocubes in phosphate buffer were also evaluated. [ABSTRACT FROM AUTHOR]