Activated Carbon Derived from the Agricultural Waste Camellia Seed Shell for High-Performance Supercapacitors

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(2), С. 469 - 478

Опубликована: Янв. 9, 2024

Under the background of current promotion global green, environmental protection, and energy conservation, sustainable conversion low-cost agricultural waste biomass into high value-added products has become a hot topic. Herein, camellia seed shells obtained after pressing oil are used to prepare porous carbon materials with specific surface area (SSA) excellent electrochemical properties for application supercapacitors. The effects different chemical activators mass ratios on pore structure shell-derived activated (CSSC) were investigated. It been found that CSSC by KOH presents physical performances, structures all prepared carbons predominantly combination mesopores micropores. Especially, owing SSA (1219 m2 g–1) CSSC–KOH-1:3 material, electrode provides an outstanding capacitance 305 F g–1 at density 0.5 A g–1. Furthermore, symmetric supercapacitor assembled electrodes can deliver (15.37 W h kg–1) power (12.9 kW kg–1), it still maintain cycling stability even 10,000 charge discharge processes. Therefore, this work significant exploration high-value shell preparation high-performance

Язык: Английский

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CuO@NiCo-LDH core-shell structure for flexible fiber-shaped supercapacitor electrode material

Journal of Energy Storage, Год журнала: 2023, Номер 74, С. 109319 - 109319

Опубликована: Окт. 26, 2023

Язык: Английский

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Carbon quantum dot regulated electrochemical activation of Co_0.03Ni_0.97LDH for energy storage

Inorganic Chemistry Frontiers, Год журнала: 2023, Номер 11(3), С. 899 - 911

Опубликована: Дек. 13, 2023

The valence and coordination structure of transition metals in electrode materials play a crucial role the electrochemical energy storage process.

Язык: Английский

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Microwave‐Induced Rapid Synthesis of MoS₂@Cellulose Composites as an Efficient Electrode Material for Quasi‐Solid‐State Supercapacitor Application

Advanced Engineering Materials, Год журнала: 2023, Номер 25(10)

Опубликована: Март 11, 2023

Transition‐metal dichalcogenides (TMDs) are highly desired for energy‐storage devices due to their intrinsic layered structure, huge surface area, and the large number of active sites. However, TMDs fail reach potential restacking 2D structures that remains a major technological hurdle. Herein, MoS 2 nanosheets cellulose fiber binary composite (MoS @Cellulose) prepared by microwave‐assisted technique demonstrated as an electrode material supercapacitor application. The tested in symmetric asymmetric all solid‐state device assemblies. It is found quasi‐solid‐state supercapacitors exhibited remarkably higher specific capacitance ≈294 ≈177 F g −1 at current density 1 A , respectively, than counterpart. Furthermore, deliver excellent energy densities ≈40.84 ≈42.67 Wh kg while maintaining power 400 791.81 W outstanding cyclic stability. entanglement causes reduction aggregation which may improve electrochemical performance supercapacitor. Herein this research, pathway provided create efficient system using materials with sustainable cellulose.

Язык: Английский

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Bifunctional carbon quantum dot-embedded metal-organic framework nanohybrid as a highly efficient electrocatalyst for water splitting and CO2 reduction

Carbon, Год журнала: 2023, Номер 216, С. 118527 - 118527

Опубликована: Окт. 19, 2023

Язык: Английский

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Synthesis, characterization, and implementation of BaNiO₃ perovskite nanoparticles as thin film supercapacitor electrode

Energy Storage, Год журнала: 2024, Номер 6(4)

Опубликована: Май 8, 2024

Abstract This work is the first attempt to explore supercapacitor applications of Barium nickelate (BaNiO 3 ) perovskite nanoparticles. The nanoparticles are synthesized using a simple combustion method and their morphology, elemental composition, so forth studied standard characterization methods such as x‐ray diffraction spectroscopy (XRD), field emission scanning electron microscopy (FESEM), forth. were found be hexagonal in shape, with an average particle size 16 nm, analysis confirms successful synthesis BaNiO For electrochemical studies, electrodes fabricated over wearable flexible conductive fabric (CF) substrate. A slurry paste applied CF dried overnight, thereby forming thin film electrode. electrode acts positive high specific capacitance 508.64 F g −1 at 2.2 current density. Upon increasing density, maintains 60% its displays 97% cyclic stability 5000 cycles. impedance (EIS) study indicates excellent conductivity electrode, bulk resistance 3.2 Ohms. performance also compared various previously reported works higher better stability. These findings suggest that nanoparticles‐based holds promise for utilization anode material applications.

Язык: Английский

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Ratiometric electrochemical immunosensor for the detection of CA199 based on the ratios of NiCo@Fc-MWCNTs-LDH and 3D-rGOF@Ag/Au complexes

Talanta, Год журнала: 2024, Номер 272, С. 125606 - 125606

Опубликована: Фев. 7, 2024

Язык: Английский

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Growth of CQD/PPy on cotton cloth as a binder-free high-performance flexible electrode for symmetric supercapacitor

Journal of Alloys and Compounds, Год журнала: 2024, Номер 992, С. 174618 - 174618

Опубликована: Апрель 24, 2024

Язык: Английский

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Crystalline-amorphous hybrid CoNi layered double hydroxides for high areal energy density supercapacitor

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 683, С. 1 - 13

Опубликована: Дек. 10, 2024

Язык: Английский

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Sequential processing of nitrogen-rich, biowaste-derived carbon quantum dots combined with strontium cobaltite for enhanced supercapacitive performance

Journal of Alloys and Compounds, Год журнала: 2023, Номер 969, С. 172256 - 172256

Опубликована: Сен. 21, 2023

Язык: Английский

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