N, B co-doped and Crumpled Graphene Oxide Pseudocapacitive Electrode for High Energy Supercapacitor

Prakash, D.; Manivannan, S.

doi:10.1016/j.surfin.2021.101025

Cited by 24 publications

(13 citation statements)

References 37 publications

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“…The N-rGO, Pt mesh, and Ag/AgCl acted as working, counter, and reference electrodes, respectively. The details of the optimization and performance tests are displayed in Figure 2 , and the specific capacitance (

), energy density, and power density were determined using the equations below [ 35 , 36 , 37 ].

…”

Section: Methodsmentioning

confidence: 99%

One-Step Solvothermal Synthesis by Ethylene Glycol to Produce N-rGO for Supercapacitor Applications

et al. 2023

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Graphene and its derivatives have emerged as peerless electrode materials for energy storage applications due to their exclusive electroactive properties such as high chemical stability, wettability, high electrical conductivity, and high specific surface area. However, electrodes from graphene-based composites are still facing some substantial challenges to meet current energy demands. Here, we applied one-pot facile solvothermal synthesis to produce nitrogen-doped reduced graphene oxide (N-rGO) nanoparticles using an organic solvent, ethylene glycol (EG), and introduced its application in supercapacitors. Electrochemical analysis was conducted to assess the performance using a multi-channel electrochemical workstation. The N-rGO-based electrode demonstrates the highest specific capacitance of 420 F g−1 at 1 A g−1 current density in 3 M KOH electrolyte with the value of energy (28.60 Whkg−1) and power (460 Wkg−1) densities. Furthermore, a high capacitance retention of 98.5% after 3000 charge/discharge cycles was recorded at 10 A g−1. This one-pot facile solvothermal synthetic process is expected to be an efficient technique to design electrodes rationally for next-generation supercapacitors.

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), energy density, and power density were determined using the equations below [ 35 , 36 , 37 ].

…”

Section: Methodsmentioning

confidence: 99%

One-Step Solvothermal Synthesis by Ethylene Glycol to Produce N-rGO for Supercapacitor Applications

et al. 2023

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“…Co-doping of GO with heteroatoms can improve its properties for application as adsorbent and photocatalyst. Co-doping of GO with boron, nitrogen, sulphur and phosphorous has been reported [ 11 , 12 , 13 ]. These co-doped materials have been extensively used in electrocatalysis due to asymmetric charge density induced by the difference between the electronegativity of heteroatoms and carbon [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Nanoflowers of MgFe2O4, Bentonite and B-,P- Co-Doped Graphene Oxide as Adsorbent and Photocatalyst: Optimization of Parameters by Box–Behnken Methodology

Ubhi

Kaur

Singh

et al. 2022

IJMS

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In the present study, nanocomposites having hierarchical nanoflowers (HNFs) -like morphology were synthesized by ultra-sonication approach. HNFs were ternary composite of MgFe2O4 and bentonite with boron-, phosphorous- co-doped graphene oxide (BPGO). The HNFs were fully characterized using different analytical tools viz. X-ray photoelectron spectroscopy, scanning electron microscopy, energy dispersion spectroscopy, transmission electron microscopy, X-ray diffraction, vibrating sample magnetometry and Mössbauer analysis. Transmission electron micrographs showed that chiffon-like BPGO nanosheets were wrapped on the MgFe2O4-bentonite surface, resulting in a porous flower-like morphology. The red-shift in XPS binding energies of HNFs as compared to MgFe2O4-bentoniteand BPGO revealed the presence of strong interactions between the two materials. Box–Behnken statistical methodology was employed to optimize adsorptive and photocatalytic parameters using Pb(II) and malathion as model pollutants, respectively. HNFs exhibited excellent adsorption ability for Pb(II) ions, with the Langmuir adsorption capacity of 654 mg g−1 at optimized pH 6.0 and 96% photocatalytic degradation of malathion at pH 9.0 as compared to MgFe2O4-bentonite and BPGO. Results obtained in this study clearly indicate that HNFs are promising nanocomposite for the removal of inorganic and organic contaminants from the aqueous solutions.

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“…Electrochemical capacitors (also known as supercapacitors) are becoming increasingly used all over the world. Supercapacitors are utilised in a variety of applications, including electric vehicles, computer memory storage systems, intermittent power supplies, and audio systems [11][12][13]. The majority of the high energy storage device is made up of electrodes and electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Effect of conducting polymer incorporated heterostructure morphology of MgCo2O4@PPy nanosheets: A promising cathode material for asymmetric supercapacitor applications

Sathishkumar

Karthik²,

BoopathiRaja

et al. 2022

Preprint

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In this work, MgCo2O4@PPy composite material was synthesized by using hydrothermal and chemical polymerization methods. In 2 M KOH electrolyte solution, the pure and composite electrodes deliver specific capacitance of 632 Fg-1 and 988 Fg-1 at a low current density of 1 Ag-1. The MgCo2O4@PPy composite electrode demonstrates high specific capacitance, long-cyclic ability, high capacitive retention, and a large energy density when utilised as an asymmetric device (ASC). A good combination of conducting polymers, which significantly improves the electrochemically active site of the electrolyte electrode interface, is credited with the MgCo2O4@PPy composite electrode material's good electrochemical behaviour. At the same time, the heterostructure shape (Nanosheet@nanospherical) influences electrolyte solution penetration and electron/ion transport. These materials have a promising future in the realm of electrochemical energy storage.

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N, B co-doped and Crumpled Graphene Oxide Pseudocapacitive Electrode for High Energy Supercapacitor

Cited by 24 publications

References 37 publications

One-Step Solvothermal Synthesis by Ethylene Glycol to Produce N-rGO for Supercapacitor Applications

One-Step Solvothermal Synthesis by Ethylene Glycol to Produce N-rGO for Supercapacitor Applications

Hierarchical Nanoflowers of MgFe2O4, Bentonite and B-,P- Co-Doped Graphene Oxide as Adsorbent and Photocatalyst: Optimization of Parameters by Box–Behnken Methodology

Effect of conducting polymer incorporated heterostructure morphology of MgCo2O4@PPy nanosheets: A promising cathode material for asymmetric supercapacitor applications

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