NiO nanomaterials: controlled fabrication, formation mechanism and the application in lithium-ion battery

Abstract

A variety of mesoporous nickel oxide (NiO) nanostructures have been prepared by annealing the corresponding β-Ni(OH)₂ precursor nanostructures synthesized through manipulating the reaction parameters (e.g., alkaline sources, reactant concentration). Moreover, the formation mechanisms of different nanostructures were tentatively discussed, based on their morphological evolution processes. Furthermore, experimental results indicate that the electrochemical performances of as-synthesized NiO nanomaterials are correlated to their morphologies and reaction scheme, and their cyclic stability should be improved for potential application in lithium-ion batteries.