MoSe2 nanoflakes-decorated vertically aligned carbon nanotube film on nickel foam as a binder-free supercapacitor electrode with high rate capability

Hierarchical Porous Integrated Co1−xS/CoFe2O4@rGO Nanoflowers Fabricated via Temperature‐Controlled In Situ Calcining Sulfurization of Multivariate CoFe‐MOF‐74@rGO for High‐Performance Supercapacitor

“…Generally, the capacitance of the active material can be divided into two sections, the diffusion‐dominated Faradaic process caused by internal electrochemical reaction and the surface‐dominated capacitive process caused by ion adsorption/desorption as well as quick Faradaic reaction near the surface of electrode materials. [ 23 ] In order to investigate the charge storage mechanism and illustrate the good performance of Sample‐800, the capacitance contributions from surface‐controlled and diffusion‐controlled processes are calculated. The current ( I , A) abides by the power‐law rule with the sweep rate ( v , mV s −1 ) for a constant voltage.…”

“…The current ( I , A) abides by the power‐law rule with the sweep rate ( v , mV s −1 ) for a constant voltage. [ 24 ] where a and b are constants, and the b is closely related to the different electrochemical processes, in which b < 0.5 represents diffusion control while 0.5 < b < 1 belongs to surface control. [ 25 ] As plotted in Figure a, there is a good linear relationship between the log( i ) and log( v ) and the value of b is calculated to be 0.76, which clearly indicates that the surface‐controlled Faradaic redox process dominates the capacity contribution.…”

TMDs beyond MoS2 for Electrochemical Energy Storage

“…Regarding aqueous electrolyte for MoSe 2 supercapacitors, the work published by Liu and co‐workers, MoSe 2 nanoflakes were deposited by hydrothermal process on a previously grown vertically aligned carbon nanotube (VACNTF) array film on silicon substrate . Upon MoSe 2 deposition, the active material was separated from silicon substrate and transferred to a nickel foam (NF) current collector, therefore providing a binder‐free electrode.…”

Asymmetric polyhedron structured NiSe2@MoSe2 device for use as a supercapacitor

“…Particularly, metal selenide shows superior electrochemical properties in consequence of material architecture enhancing the large surface area which provides and accelerates redox reaction [14]. Furthermore, Se belongs to the same group with the O element sharing the similar physical and chemical properties [15,16]. The material Se has the good metallic features; therefore, the corresponding transition metal composites exhibit a good electronic conductivity than the transition metal oxides (TMOs) which is vital for electrochemical application [17].…”