Synthesis of novel Co3O4 nanocubes-NiO octahedral hybrids for electrochemical energy storage supercapacitors

Capsule‐shaped calcium and cobalt‐doped ZnO electrodes for high electrochemical supercapacitor performance

“…On the other hand, the shape of the CV curves remained unchanged at all scan rates, highlighting the superior pseudocapacitive response without deforming their nature. The specific capacitance of the Ca‐Co@ZnO electrode was calculated using the reported equation, as shown in Figure S2 21 . Higher scan rates resulted in a lower specific capacitance than at lower scan rates despite the excessively large area loop.…”

“…The specific capacitance of the Ca-Co@ZnO electrode was calculated using the reported equation, as shown in Figure S2. 21 Higher scan rates resulted in a lower specific capacitance than at lower scan rates despite the excessively large area loop. Because, at higher scan rates, there is a limited time for ions/electron interactions with the electrode and electrolyte, showing a poor surface response.…”

“…The morphology is a crucial factor for enhancing the performance of energy storage devices because of their uniform size and various structures that offer high stability, crystallinity, and active sites. 21 Directing the preferred crystal growth orientation and adjusting the dimensionality by controlling the relative energy are specific steps that can be applied to control the synthesis of novel nanostructures. These depend mainly on the selection process, assemble direction agents, and solvents.…”

α‐MnO2‐Sensitized SrCO3−Sr(OH)2 Supported on Two‐Dimensional Carbon Composites as Stable Electrode Material for Asymmetric Supercapacitor and Oxygen Evolution Catalysis

“…The electrochemical performance of any supercapacitor device primarily depends on the characteristics of the respective materials used for electrode fabrication. [12,13] Recently, improving the power density and specific capacitance of the electroactive materials used in the supercapacitors (SCs) acts as major choice of study for contemporary researchers. [14,15] Among the numerous electrode materials reported till date, the transition metal oxide/hydroxide like MnO 2 , NiO 2 , RuO 2 , SnO 2 , Co 3 O 4 , Ni(OH) 2 , Co(OH) 2 etc are mainly offering reversible redox property due to the tunable electrochemical reaction.…”

A novel Ni/Co metal–organic framework with a porous organic polymer material as a ligand for a high-performance supercapacitor and a glucose sensor

“…8 Due to its huge specific surface area, high porosity and strong designability, the MOF has gained a lot of interest from researchers working on electrode materials for supercapacitors. [9][10][11][12][13] In comparison to other [14][15][16][17][18] electrode materials of supercapacitors, the MOF can provide not only metal nodes that contain metal ions with different valences like metal oxides 19,20 but also pore sizes that match the electrolyte ions like carbon materials 21,22 and conductive polymers. 23,24 Therefore, its capacitance can be improved from two aspects at the same time: the pseudocapacitance brought by the redox reaction of the metal node and the double-layer capacitance brought by the pore structure.…”