Interdependence of the electrical performance of NiCuFeCoMn multi-structure carbonates as electrode material for supercapacitors

Two-Dimensional Synergistic Interfacial Orientation on Tin Oxide-Reinforced Cobalt Carbonate Hydroxide Heterostructures for High-Performance Energy Storage

“…This behavior suggests that the electrochemical process is primarily governed by the interfacial kinetics of the Faradaic redox process. Moreover, the kinetics of charge storage capacity refers to the impact of diffusion-controlled and surface-controlled phenomena. ,, The contribution of charge storage mechanism can be described by following eq i ( V ) = F 1 ν + F 2 ν 1 / 2 where i ( V ) denotes the potential-dependent current and F 1 ν and F 2 ν 1/2 correspond to the surface capacitive-controlled and diffusion-controlled contributions, respectively. The CVs of the SnO@CCH-8 electrode (Figure (c)) illustrated that the capacitive-controlled and diffusion-controlled behaviors correlate the adequate contribution of charge storage.…”

“…Moreover, the kinetics of charge storage capacity refers to the impact of diffusioncontrolled and surface-controlled phenomena. 21,35,52 The contribution of charge storage mechanism can be described by following eq 9…”

“…Despite the fact that the Co center is the main active site, the CCH is associated with low inherent electrical conductivity, which can be largely ignored in practical low capacitance. , The electrocatalytic properties of CCH compel sufficient advancement in engineering its architecture to explore its potential in energy storage applications. The design of surface-tailored modification is a vital approach for facilitating electron movement on the surface while retaining intrinsic properties. − This can lead to an increase in the intrinsic electrical conductivity of the CCH surface and provide more redox active sites to alleviate the low conductivity. Also, this strategy provides improved electrochemical properties, to use CCH as an efficient electrode material with structural stability rather than individual component. − …”

Three-dimensional ternary NixCuyZnz(CO3)(OH)2 electrodes for supercapacitors: electrochemical properties and applications

“…31 Conventional Ni-based binary compounds have high specific capacities, whereas conventional Cu-based binary compounds have high cycling stability. 32,33 Therefore, a NiCubased binary compound is expected to help produce electrodes with excellent supercapacitor performance owing to the synergistic effect of Ni and Cu. 34 However, the electrochemical performance cannot be further improved when using NiCu compounds because of their large pore size, low space rate, and high mass loading.…”

Rational Design of a Hierarchical Candied-Haws-like NiCo2O4@Ni,Co-(HCO3)2 Heterostructure for the Electrochemical Performance Enhancement of Supercapacitors

“…Therefore, various MHC-based electrode materials for supercapacitors have been reported in the past decade. For example, Lee et al synthesized multi-structure carbonates as electrodes which exhibited a high capacitance of 1241 F g –1 at 3 A g –1 . However, nanosized MHC particles easily agglomerate into larger clusters and a large portion of active materials can hardly participate in the surface redox reactions, resulting in unsatisfactory supercapacitive performance.…”