Synthesis of Nickel Oxide Nanoarchitecture Crystals as an Advanced Electrode Material for Supercapacitors

Abstract

A NiO nanoarchitecture with a chain-like structure material was synthesized using a CTAB-assisted sonochemical method and then applied as an electrode in supercapacitors. Spectral analysis like XRD, FTIR and SEM was used to characterize the crystalline nature, internal structure and morphological properties of NiO nanoarchitecture. At a scan rate of 5 mV s-1, the NiO material exhibits a pseudocapacitive charge storage mechanism and provides a specific capacitance of 562 with good rate capabilities. Moreover, the chain-like NiO material exhibits outstanding cycle stability, retaining 96% of the original capacitance after 3,000 cycles at a scan rate of 100 mV s-1. The high-performance, chain-like nanostructured NiO material is easy to make and is of great interest for improved energy storage devices.