Porous 3D columnar-sphere of NiO nanomaterials synthesized for supercapacitors hydrothermal route: impact of thiourea concentration.

The charge storage application has witnessed a dramatic increase in terms of the short charge-discharge time of supercapacitors, specifically in highly active electrode materials. For charge storage supercapacitor applications, highly porous materials are preferable. In this research article, thiourea acts as a leaving agent in the preparation of the porous 3D spherical architecture of NiO nanomaterials.