Creating ultrahigh surface area functional carbon from biomass for high performance supercapacitor and facile removal of emerging pollutants

Aruchamy, Kanakaraj; Kalpana, D.; Lee, Chang Woo; Mondal, Dibyendu; Kotrappanavar, Nataraj Sanna

doi:10.1016/j.cej.2021.131477

Cited by 73 publications

(17 citation statements)

References 69 publications

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“…Similarly, carbon materials, especially activated carbon, are of greater concern due to their lower production costs, abundant availability, suitable pore structure, and very high porosity properties. , The biomass-based activated carbon provides a 3D hierarchical pore structure of a combination of micro-, meso-, and macropores that enable the electrode material to produce high energy and power densities simultaneously. , Moreover, the self-doping of N/O/P on carbon-based biomass also confirmed their high advantage . Activated carbon from the leaves of Parthenium hysterophorous (biomass) has shown a 3D porous structure with a high surface area of 4014 m 2 g –1 recently, followed by oxygen self-doping . This characteristic has increased the storage capacity of a symmetric supercapacitor to 270 F g –1 .…”

Section: Introductionmentioning

confidence: 95%

“… 22 Activated carbon from the leaves of Parthenium hysterophorous (biomass) has shown a 3D porous structure with a high surface area of 4014 m 2 g –1 recently, followed by oxygen self-doping. 23 This characteristic has increased the storage capacity of a symmetric supercapacitor to 270 F g –1 . The adjustable micro-/macropore ratio of activated carbon from pecan shells can also produce an extraordinary specific capacitance of 447 F g –1 24 and display high electrochemical properties with a surface area of 1,785 m 2 g –1 .…”

Section: Introductionmentioning

confidence: 99%

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Novel Moringa oleifera Leaves 3D Porous Carbon-Based Electrode Material as a High-Performance EDLC Supercapacitor

2022

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Biomass-based activated carbon has great potential in the use of its versatile 3D porous structures as an excellent electrode material in presenting high conductivity, large porosity, and outstanding stability for electrochemical energy storage devices. In this study, the electrode material develops through a novel consolidated carbon disc binder-free design, which was derived from Moringa oleifera leaves (MOLs) for electrochemical double-layer capacitor applications. The carbon discs are prepared in a series of treatments of precarbonized, chemical impregnation of zinc chloride, integrated pyrolysis of N 2 carbonization, and CO 2 physical activation. The physical activation temperatures applied at 650, 750, and 850 °C optimize the precursor potential. By optimizing the 3D hierarchical pore properties of the MOL750, the carbon disc binder-free design demonstrates optimal symmetric supercapacitor performance with a high specific capacitance of 307 F g −1 at a current density of 1 A g −1 in an aqueous electrolyte solution of 1 M H 2 SO 4 . Furthermore, the extremely low internal resistance (0.006Ω) of the carbon disc initiated excellent electrical conductivity. The supercapacitors also maintain their high capacitive properties in aqueous electrolyte solutions of 6 M KOH and 1 M Na 2 SO 4 , respectively. The results show that a novel consolidated carbon disc binder-free design can be obtained from biomass MOLs through a reasonable approach to develop superior electrode materials to enhance high-performance electrochemical energy storage devices.

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Novel Moringa oleifera Leaves 3D Porous Carbon-Based Electrode Material as a High-Performance EDLC Supercapacitor

2022

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“…Renewable natural energy sources such as the sun and wind help to produce energy only when they are uninterrupted, only when the sun’s intensity is high, and only when the wind blows. , Supercapacitors, batteries, and hydrogen-oxygen-producing fuel cells are the best alternatives to solve the problems in the use of such renewable energy sources. Supercapacitors, which have attracted enormous research interest today, are believed as the best energy storage materials because of their longevity life, more rapid charge/discharge, elevated energy and power density, and green environmentally friendly properties even in severe circumstances. − They also support applications such as portable electronics, regenerative braking system, backup power supply, industrial power and energy management, etc., with subsidiary to batteries.…”

Section: Introductionmentioning

confidence: 99%

Rare Earth-Doped MoS₂ for Supercapacitor Application

et al. 2022

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The low availability of fossil fuels, high expenditure, and serious environmental impacts are the key to sustainable clean and green energy development. Molybdenum-based electrode materials are identified as effective electrodes to improve energy storage devices' performances. In this work, pure and different rare earth (neodymium and gadolinium) doped MoS 2 electrodes are successfully prepared by employing the hydrothermal method. Doping rare earth elements with metal sulfides would be beneficial for combining with functional groups due to the 4f vacant orbital. Macroscopic analysis exposed the morphological variations from sphere to sheet by the effect of doping. The sheet-like Gd-doped MoS 2 nanostructures exhibited the maximum 357 F/g@10 mV/s specific capacitance from CV and 231.38 F/g@1 A/g from GCD with a prolonged cycling life of 81.50% over 5000 cycles. EIS spectra revealed the lowest solution and charge transfer resistance for Gd-doped MoS 2 materials, which suggests the high conductivity of the material. The strategies and results outlined in this paper are expected to trigger the search for completely new rare earth-doped metal sulfides for efficient energy storage applications.

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“…Therefore, recycling into a high value‐added material specifically a porous carbon material needs to be carried out. The biomass‐based carbon product can be applied to various technologies and complex applications such as absorbents, water, and air purification, catalysts, and energy storage [6–8] . The properties of superior carbon products derived from biomass are highly dependent on their synthetic methodology.…”

Section: Introductionmentioning

confidence: 99%

Suitable Micro/Mesoporous Carbon Derived from Galangal Leaves (Alpinia galanga L.) Biomass for Enhancing Symmetric Electrochemical Double‐layer Capacitor Performances

et al. 2022

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Recently, micro/mesoporous biomass‐based functional carbon as an excellent electrode material and energy storage device has attracted massive attention due to the availability of abundant raw materials, adaptability to pore structure, good chemical‐physical behaviors, high conductivity, enhanced energy density, and long life cyclic stability. This study performs micro/meso carbon from the novel galangal leaves biomass through KOH and CO2 activation as electrodes material for symmetric supercapacitors. The activated carbon obtained showed a clear hierarchical pore structure with an excellent micro:meso ratio of 56.72 %:43.28 % which caused their high electrochemical properties. The carbon was further assembled into electrodes through a binder‐free solid disc designed to assess the electrochemical performance as a supercapacitor. The results indicated that the galangal leaves‐based adapted micro/mesoporous carbon obtained a high specific capacitance of 161 F g−1 at 1 A g−1. Additionally, the symmetric supercapacitor had a specific capacitance retention rate of 78 % at 10 mV s−1 and low resistance in the aqueous electrolyte of 1 M H2SO4. The maximum energy density was 19.53 Wh kg−1 at an optimum power density of 132.32 W kg−1. Therefore, the appropriate micro/mesopores carbon ratio based on the novel galangal leaves biomass can be considered as a good electrode material for high‐performance supercapacitor.

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Creating ultrahigh surface area functional carbon from biomass for high performance supercapacitor and facile removal of emerging pollutants

Cited by 73 publications

References 69 publications

Novel Moringa oleifera Leaves 3D Porous Carbon-Based Electrode Material as a High-Performance EDLC Supercapacitor

Novel Moringa oleifera Leaves 3D Porous Carbon-Based Electrode Material as a High-Performance EDLC Supercapacitor

Rare Earth-Doped MoS₂ for Supercapacitor Application

Suitable Micro/Mesoporous Carbon Derived from Galangal Leaves (Alpinia galanga L.) Biomass for Enhancing Symmetric Electrochemical Double‐layer Capacitor Performances

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Creating ultrahigh surface area functional carbon from biomass for high performance supercapacitor and facile removal of emerging pollutants

Cited by 73 publications

References 69 publications

Novel Moringa oleifera Leaves 3D Porous Carbon-Based Electrode Material as a High-Performance EDLC Supercapacitor

Novel Moringa oleifera Leaves 3D Porous Carbon-Based Electrode Material as a High-Performance EDLC Supercapacitor

Rare Earth-Doped MoS2 for Supercapacitor Application

Suitable Micro/Mesoporous Carbon Derived from Galangal Leaves (Alpinia galanga L.) Biomass for Enhancing Symmetric Electrochemical Double‐layer Capacitor Performances

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Product

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Rare Earth-Doped MoS₂ for Supercapacitor Application