Nickel oxides/hydroxides-graphene as hybrid supercapattery nanocomposites for advanced charge storage materials: A review
Document Type
Article
Publication Date
11-2-2021
Abstract
This work presents a review of nanocomposites of nickel oxides (NiO, nickel cobaltite NiCo2O4), nickel hydroxides (Ni(OH)(2)), layered-double hydroxides of Ni (LDH-Ni) with graphene, functionalized-graphene (graphene oxide and reduced graphene oxide), doped-graphene (nitrogen doped and boron doped graphene) as hybrid supercapattery materials. The synergy between battery materials such as nanostructured nickel oxides, hydroxides, LDH-Ni with supercapacitors such as graphene/functionalized graphene/doped graphene, provides better energy storage performances than the pure materials. Although used battery cathodes, the nickel oxides/hydroxides were incorporated with graphene materials to enhance the charge density and the power density of the hydrid supercapattery nanocomposites. The higher power density and energy density of the hydrid supercapattery nanocomposites bridges the gap between batteries and supercapacitors. The reasons for the higher performance of the hybrid supecapattery electrodes compared to the pure nickel oxides/hydroxides are discussed. The review also presents the different types of synthetic process of the nanocomposites and future perspectives.
Keywords
Supercapattery, Asymmetric supercapacitor, Nickel oxide, Nickel hydroxide, Nickel cobaltite, Graphene, Layered double hydroxides
Divisions
nanotechnology
Funders
Universiti Malaya (FP039 2016)
Publication Title
Critical Reviews in Solid State and Materials Sciences
Volume
46
Issue
6
Publisher
Taylor & Francis
Publisher Location
530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA