Impact of aqueous and organic electrolytes on the supercapacitive performance of activated carbon derived from pea skin

Ahmed, Sultan; Ahmed, Ahsan; Rafat, M.

doi:10.1016/j.surfcoat.2018.05.073

Cited by 34 publications

(12 citation statements)

References 41 publications

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“…The use of pine sawdust as precursor of AC was described elsewhere to be used in removal of methyl orange [48]. A recent application of ACs as active material in supercapacitor electrodes has been stated due to the possibility of developing microporosity able to adsorb Na + and SO 4 2ions as components of acidic and basic electrolytes with hydration radii of 0.358 and 0.38 nm, respectively [49].…”

Section: Xrdmentioning

confidence: 99%

Activated Carbon by Potassium Carbonate Activation from Pine Sawdust (Pinusmontezumae Lamb.)

et al. 2020

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Activated carbon (AC) was gained from Pinus montezumae (PM) wood sawdust and chemical activation with K2CO3 was used for obtaining activated carbons. Variations in reaction conditions such as temperature, impregnation ratio (IR), and activation time were carried out to study their influence on the specific surface area (SSA) and average pore volume (APV) in AC. Materials were analyzed by means of Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) to determine the functional groups, pore structure, and morphology of pine sawdust and activated carbons. Activated carbons were amorphous in nature with some crystalline regions.

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Section: Xrdmentioning

confidence: 99%

Activated Carbon by Potassium Carbonate Activation from Pine Sawdust (Pinusmontezumae Lamb.)

et al. 2020

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“…[30] Commonly, commercial EDLCs use activated carbon electrodes and they exhibit a practical specific capacitance of 200 F g À 1 in aqueous electrolytes. [31] Specific capacitance obtained from graphene oxide showed 306 F g À 1. [32] The specific capacitance of CNT (1D), rGO (2D), and mesoporous carbon (3D) showed 33 F g À 1 , 166 F g À 1 , and 202 F g À 1 obtained by chemical activation with KOH.…”

Section: Electrical Double Layer Capacitor (Edlcs)mentioning

confidence: 99%

“…Similarly, carbon nanotubes (CNT) are an allotrope of carbon with excellent electrical conductivity, mechanical strength, and chemical stability [30] . Commonly, commercial EDLCs use activated carbon electrodes and they exhibit a practical specific capacitance of 200 F g −1 in aqueous electrolytes [31] . Specific capacitance obtained from graphene oxide showed 306 F g −1.…”

Section: Types Of Electrode Materialsmentioning

confidence: 99%

Recent Trends in Bimetallic Oxides and Their Composites as Electrode Materials for Supercapacitor Applications

2021

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There is a growing interest in supercapacitors as energy storage systems due to their high specific power, fast charge/discharge rates, and long cycling stability. Researchers have focused recently on developing nanomaterials to enhance the capacitive performance of supercapacitors. The inclusion of electroactive components, such as transition metal oxides (TMOs), carbonbased materials, and conducting polymers (CPs), is believed to play an important role in improving the electrochemical behavior of the electrode materials. Nevertheless, supercapacitors containing TMOs, carbon-based materials, and CPs commonly suffer from inferior ion-transport kinetics and poor electronic conductivity, which can affect the rate capability and cycling stability of the electrodes. Therefore, the development of TMO/CP and TMO/carbon-based electrode materials has gained widespread attention because they synergistically combine the advantages of both materials, enabling revolutionary applications in the electrochemical field. In general, TMOs have given good performance as electrodes for supercapacitors by further increasing the performance of the electrode when two metal cations are introduced into a single crystal structure. This Review describes and highlights recent progress in the development of bimetallic oxides regarding their design approach, configurations, and electrochemical properties for supercapacitor applications, at the same time providing new opportunities for future energy storage technologies.

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“…Hierarchical porous activated carbon [34][35][36][37][38] are promising electrode materials for supercapacitor applications [3][4][5][6]39,40] due to its ultra-low cost, high abundance, easy availability, and environmental friendliness. Various biomass materials, such as jute sticks and fibers, [5,39,41] Albizia procera leaves, [8] banana leaves, [3] coal, [7] Syzygium cumini leaves, [9] loblolly pine, [42] waste shrimp shells, [43] waste tea, [44] corn, [45] pea skin, [46] and Moringa oleifera stems, [47] have been widely used for hierarchical porous activated carbon and reported for supercapacitor applications. In our previous work, we reported the preparation of hierarchical porous activated carbon nanosheets (ACNS) from banana leaves for supercapacitor applications in aqueous, organic, and IL-based electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Development of a Novel Bio‐based Redox Electrolyte using Pivalic Acid and Ascorbic Acid for the Activated Carbon‐based Supercapacitor Fabrication

et al. 2021

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Supercapacitor is considered a promising energy storage device due to its high‐power density and high specific capacitance. Electrode materials and electrolytes are major components of supercapacitors. The most used electrolytes are not biocompatible, which limits their practical applications. Bio‐electrolytes often cause low performances of supercapacitors. However, the inadequate performances of bio‐electrolytes for supercapacitor applications could be improved using redox molecules. Here, we are reporting the development of a novel redox bio‐electrolyte based on pivalic acid (PA) and ascorbic acid (AA). The salts of PA and AA served as the bio‐electrolyte and redox molecules, respectively. It is worth to note that PA which can be generated from bio‐sources and industrial wastes, is soluble in alkaline solutions. AA is found in most living organisms, including plants. The developed supercapacitor with the bio‐based redox electrolyte provides a specific capacitance of 308 Fg−1 at a current density of 1 Ag−1 and achieved an energy density of 15 Whkg−1 at a power density of 300 Wkg−1. The supercapacitor demonstrates a good coulombic efficiency of ∼97% with capacitance retention of ∼72% after 10000 charge‐discharge cycles. This study is expected to widen the applications of bio‐based redox electrolytes for practical electrochemical energy storage applications and enables access to greener and more sustainable energy storage technology.

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Impact of aqueous and organic electrolytes on the supercapacitive performance of activated carbon derived from pea skin

Cited by 34 publications

References 41 publications

Activated Carbon by Potassium Carbonate Activation from Pine Sawdust (Pinusmontezumae Lamb.)

Activated Carbon by Potassium Carbonate Activation from Pine Sawdust (Pinusmontezumae Lamb.)

Recent Trends in Bimetallic Oxides and Their Composites as Electrode Materials for Supercapacitor Applications

Development of a Novel Bio‐based Redox Electrolyte using Pivalic Acid and Ascorbic Acid for the Activated Carbon‐based Supercapacitor Fabrication

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