Enhanced supercapacitive performance of reduced graphene oxide by incorporating NiCo2O4 quantum dots using aqueous electrolyte

High electrochemical performance of nickel cobaltite@biomass carbon composite (NiCoO@BC) derived from the bark of Anacardium occidentale for supercapacitor application

“…Recently, various carbonbased materials have been utilized to enhance the properties of metal oxides. The most used are reduced graphene oxide (rGO), [29][30][31] graphene, [32][33][34] activated carbon, [35][36][37] g-C 3 N 4 , 38,39 and carbon nanotubes (CNT). 40 They have excellent properties, such as large surface area and good conductivity, but their fabrication process from commercial precursors is however costly and environmentally harmful.…”

The first structural, morphological and magnetic property studies on spinel nickel cobaltite nanoparticles synthesized from non-standard reagents

“…1,2 So, spinel nanomaterials are attracting extensive interest due to their wide range of nanotechnological applications in catalysts, magnetic recordings, biomedical devices, electronics, microwave absorbers, gas sensors, magnetism and electrochemical technologies such as batteries, supercapacitors, fuel cells, optical materials/ devices and electrolysers. [3][4][5][6][7] The spinel nanomaterials exhibit a formula of A x B 3Àx O 4 in the cubic spinel structure, in which A and B represent the tetrahedral and octahedral distributions of cations, where A and B are transition metals such as Ni, Zn, Co, Fe, Mn, etc. [8][9][10][11] This spinel structure allows various interesting physicochemical properties due to the different oxidation states of the transition metals and their distribution in the tetrahedral and octahedral sites.…”

“…11,20,21 Recently, many researches have studied NiCo 2 O 4 as a potential candidate for supercapacitors. 2,[5][6][7]11 NiCo 2 O 4 has most success in supercapacitor applications because it offers high redox chemistry and high electrical conductivity, and also exhibits several nanostructures to produce high electrochemical supercapacitive properties. [5][6][7]11 These nanostructures include 1D structures like nanoneedles or nanowires, and 2D structures like platelets, nanosheets or coral.…”

“…2,[5][6][7]11 NiCo 2 O 4 has most success in supercapacitor applications because it offers high redox chemistry and high electrical conductivity, and also exhibits several nanostructures to produce high electrochemical supercapacitive properties. [5][6][7]11 These nanostructures include 1D structures like nanoneedles or nanowires, and 2D structures like platelets, nanosheets or coral. 11 NiCo 2 O 4 exhibits either an inverse or normal spinel structure due to the different valence states of nickel and cobalt atoms, 20 where nickel and cobalt cations prefer to occupy the tetrahedral and octahedral sites according to the chemical formula (Co 2+…”

Synthesis of Nickel Cobalt Oxide - Reduced Graphene Oxide Nanocomposite Using Ammonia for Supercapacitor

“…So, it is decided to synthesize nickel cobalt oxide (NC) and RGO nanocomposite, denoted by NC-RGO. We have already prepared these nanocomposites by different methods previously (24,(26)(27)(28). Our aim is find the material which can provide better results.…”