The green one-step electrodeposition of oxygen-functionalized porous g-C₃N₄ decorated with Fe₃O₄ nanoparticles onto Ni-foam as a binder-free outstanding material for supercapacitors

Abstract

In this paper, binder-free high-performance nanocomposite of Fe3O4/oxygen-functionalized g-C3N4 is fabricated thorugh a one-pot electrophoretic-electrochemical (EP-EC) process. In this process, Fe3O4 nanoparticles are in situ nucluated through a two-step electochemical-chemical...

A porous MOF-derived NiMn2O4 material and its superior energy storage performance for high-performance supercapacitors

“…In this formula, C is the specific capacitance (F g −1 ), Q is the total charge under the CV plots, Δ V is the potential difference between the initial V i and final V f potentials m is the mass of the deposited MOF or its derived oxide on nickel foam (g), ν is the potential scan rate (V s −1 ) and I ( V ) is a current measured at the applied potential sweep (A). GCD tests were also carried out at current densities of 0.5 to 30 A g −1 within the potential range of −0.1 to 0.45 V. The following equation was utilized to estimate the capacitances of the prepared electrodes: 43 …”

Advances in Carbon Nitride-Based Materials and Their Electrocatalytic Applications

“…Based on the electrochemical evaluations, the Fe 3 O 4 @O- g -C 3 N 4 /Ni foam exhibited a 710 F g –1 specific capacitance at 0.5 A g –1 , and 94.6% of it was retained after 8000 cycles at a current load 5 A g –1 . That reached 80.15% at 3 A g –1 , which was explained the superior synergism by Fe 3 O 4 nanoparticles and O-functionalized g-C 3 N 4 sheets . A nanocomposite of g-C 3 N 4 /BiVO 4 was synthesized as a supercapacitor in aqueous electrolytes.…”

“…That reached 80.15% at 3 A g −1 , which was explained the superior synergism by Fe 3 O 4 nanoparticles and O-functionalized g-C 3 N 4 sheets. 284 A nanocomposite of g-C 3 N 4 /BiVO 4 was synthesized as a supercapacitor in aqueous electrolytes. Since rice pellet-formed BiVO 4 decorated the g-C 3 N 4 nanosheets, the wettability was enhanced, leading to better electrolyte ion permeability in the electrodes and increasing the specific capacity.…”

Electrochemical Aging and Halogen Oxides Formation on Multiwalled Carbon Nanotubes and Fe3O4@g-C3N4 Coated Conductive Membranes

“…The objectives of this study aim to unravel electrochemical membrane aging mechanisms and byproducts formation using two model electrocatalyst-membranes: hybridized MWCNTs coated ceramic membrane (MWCNTs/CM) and Fe 3 O 4 @g-C 3 N 4 loaded ceramic membrane (Fe 3 O 4 @g-C 3 N 4 /CM), which have been reported for the degradation of organic dyes, tetrabromobisphenol A (TBBPA), and diclofenac . For example, g-C 3 N 4 hybrids with Fe 3 O 4 composite have been reported with better electrochemical performance than pure g-C 3 N 4 . , Membrane filtration experiments were performed in the single pass, permeate flow-through operational mode under variations of the initial concentrations of sodium chloride (NaCl) and sodium bromide (NaBr), solution pH, and applied electrode potentials. The membrane aging of the two types of hybridized ERMs were thoroughly characterized by examining the changes of the membrane’s physicochemical and electrochemical properties.…”