Understanding the Charge Storage Mechanism and Electrochemical Performance on the Poly[Ni(salen)]-modified Electrode Electropolymerized with Different Sweep Rate

Abstract

Poly[Ni(salen)] films were electropolymerized on multiwalled carbon nanotubes (MWCNTs) in tetrabutylammonium perchlorate/acetonitrile by cyclic voltammetry method. And the employed scan rates were 5, 10, 20 and 40 mV s . The excellent electrochemical performance of poly[Ni(salen)] electropolymerized at 20 mV s −1 is ascribed to the better conductivity and superior diffusion ability according to the kinetics.

A 2D metal–organic framework/reduced graphene oxide heterostructure for supercapacitor application

“…However, when the potential is reached a certain level the active materials is get activated and the device start to show pseudocapacitive property. 55 Thus, a voltage plateaus in discharge curve is observed and these plateaus match with the redox peaks observed in the CV curves. This phenomenon indicates that the samples show an electric double layer capacitors property for short time at initial of discharging and exhibit pseudocapacitance behaviour after activation.…”

Atomic and Electronic Structure of Metal–Salen Complexes [M(Salen)], Their Polymers and Composites Based on Them with Carbon Nanostructures: Review of X-ray Spectroscopy Studies

“…The literature provides several key methods for forming composites of MWCNTs (SWCNTs), graphene, and electrically conductive polymers based on [Ni(Salen)] complexes by electrochemical deposition. One approach is to prepare a conductive electrode with a carbon layer that serves as a substrate for the formation of a polymer, such as poly-[Ni(Salen)] [5,7,42,113,114] [42], by using a solution consisting of an electrolyte and a monomer and applying potentiodynamic, conventional, or pulsed potentiostatic methods. In the studies referred to, it was mainly MWCNTs that were used as the carbon material, with the preparing composites serving as materials for energy storage.…”