Porous carbon materials with different dimensions and their applications in supercapacitors

Journal of Physics D Applied Physics, Год журнала: 2024, Номер 57(43), С. 433001 - 433001

Опубликована: Авг. 1, 2024

Abstract Supercapacitors have become attractive energy storage devices due to their high power density, good cycling stability, and fast charging discharging speeds. Porous carbon has great specific surface area, density conversion performance, so porous as supercapacitor electrode material been widely concerned. Carbon materials with different dimensions sizes, such spheres, nanotubes, nanofibers graphene activated can provide performance advantages. At the same time, composite of metal compounds, conductive polymers particles containing N/P/O/S further optimize materials, well significant effects on increase area are obtained. This article introduces used in recent years, multi-level structural related materials. We first introduced compared electrochemical performance. Then, based various research results, factors affecting its were discussed detail. As as, preparation methods introduced, requirements, advantages disadvantages briefly analyzed. The application combined other supercapacitors is listed. Finally, a summary outlook current status supplied, providing reference for rational design future.

Язык: Английский

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N, P co-doped microporous carbon derived from the central part of corn cob for high-performance symmetrical supercapacitors

Journal of Energy Storage, Год журнала: 2024, Номер 96, С. 112680 - 112680

Опубликована: Июнь 28, 2024

Язык: Английский

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Coal-Derived Porous Carbon as Versatile Electrode Materials for Aqueous, Water-in-Salt, and Organic Electrolytes, and Fabrication of Pouch Cell Supercapacitor toward Power Application

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(15), С. 6045 - 6061

Опубликована: Июль 18, 2024

Язык: Английский

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Carbon nanomaterials for aqueous zinc-ion capacitors: recent progress, challenges, and perspectives

Rare Metals, Год журнала: 2024, Номер unknown

Опубликована: Июль 12, 2024

Язык: Английский

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Activated Carbon for Supercapacitor Electrodes Produced by the Carbonation and Activation of Glucose with Potassium Nitrate

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(16), С. 6873 - 6886

Опубликована: Авг. 15, 2024

The preparation of activated carbon has long been a subject interest for researchers aiming to develop straightforward and environmentally friendly method. This study introduces an approach carbonizing glucose using potassium nitrate ignite carbonize glucose, resulting in the production fluffy carbon. Activated suitable supercapacitor can be obtained through postprocessing involving calcination pickling. An important feature this method is that it does not require use strong alkali, such as hydroxide, activation reaction following carbonization. Based on experimental results, optimal produced when proportion feedstock 50%. Furthermore, with superior physical characteristics utilized assembly organic electrolyte supercapacitors, their electrical properties analyzed. results indicate assembled by 50% raw material demonstrates best performance. Its cyclic voltammetry (CV) curve approximates rectangle exhibits almost vertical at low frequencies Nyquist plot. Additionally, analysis galvanostatic charge–discharge behavior supercapacitor, maintains equilateral triangle pattern even current density 5A/g. also show achieves 38.41 153.66 F/g capacitor-specific capacitance electrode-specific capacitance, respectively.

Язык: Английский

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Green synthesis of nitrogen and oxygen enriched porous carbon from lignite humate for high-performance supercapacitors

Journal of Energy Storage, Год журнала: 2024, Номер 101, С. 113955 - 113955

Опубликована: Окт. 3, 2024

Язык: Английский

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Biomass nanoarchitectonics for porous carbon materials with exceptionally high mesoporous ratio through urea-regulated co-activation strategy and their application in supercapacitors

Materials Today Chemistry, Год журнала: 2024, Номер 42, С. 102419 - 102419

Опубликована: Ноя. 24, 2024

Язык: Английский

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Molten Salt Construction of Nitrogen, Oxygen, Sulfur Co‐Doped Hierarchical Porous Carbon for Zinc Ion Hybrid Capacitors

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Фев. 10, 2025

Abstract Heteroatoms doped hierarchical porous carbon shows great potentiality as electrode materials for zinc ion hybrid capacitors. Herein, nitrogen, oxygen, and sulfur co‐doped (NSPC) is synthesized by one‐step pyrolysis of the mixture KHCO 3 , starch, acesulfame potassium. The obtained NSPC‐700 samples possess 3D interconnected architecture, high specific surface area, rich functional groups. Result from synergistic effect, a capacitance 382 F g −1 at 0.5 A outstanding electrochemical stabilization with retention 101.5%. Density theory (DFT) results show that co‐doping N, O, S can improve adsorption capacity ions enhance charge transfer rate. assembled Zn//ZnSO 4 (aq)//NSPC‐700 capacitor achieves an energy density 120.84 Wh kg power 100 W excellent (90.9% after 10,000 cycles).

Язык: Английский

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Enhancing Electrochemical Energy Storage with 3D Ti₃C₂T_x Hybrid Electrode Materials

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Abstract MXenes have demonstrated significant promise in electrochemical energy storage due to their high electrical conductivity, excellent flexibility, and hydrophilicity. However, susceptibility stacking oxidation limits the development of storage. In this paper, 3D structured Ti 3 C 2 T x (THM) is prepared. Subsequently, THM used as inner support structure, polydopamine (PDA) outer shell structure encapsulate THM, uniformly dispersed N‐doped spherical (THM@CN) obtained after carbonization at 650 °C. Finally, NiS cultivated on surface THM@CN by hydrothermal synthesis acquire electrode material NiS/THM@CN. The NiS/THM@CN has a weight capacitance 2750 F g −1 (305.56 mAh /1 A ). Furthermore, solid‐phase asymmetric HSC an density up 73.36 Wh kg and, with system, sustained 88.5% initial value 15 000 cycles. proposed junction CN specific area dispersion, well stability, which further promotes application high‐performance devices.

Язык: Английский

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Copper Sulfide/N,S-Doped Carbon Nanocomposites as High-Performance Supercapacitor Devices

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(18), С. 7885 - 7894

Опубликована: Сен. 10, 2024

Язык: Английский

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