Facile Synthesis of Biocarbon-Based MoS₂ Composite for High-Performance Supercapacitor Application

Nano Letters, Год журнала: 2022, Номер 22(20), С. 8161 - 8167

Опубликована: Окт. 4, 2022

Nanocomposites are gaining high demand for the development of next-generation energy storage devices because their eco-friendly and cost-effective natures. However, short-term retainability marginal stability regarded as hindrances to overcome. In this work, we demonstrate a high-performance supercapacitor fabricated by biocarbon-based MoS2 (Bio-C/MoS2) nanoparticles synthesized facile hydrothermal approach using date fruits. Here, report specific capacitance carbon-based nanocomposite employing pyrolysis technique converting agricultural biowaste into highly affordable resource. The biocompatible Bio-C/MoS2 nanospheres exhibited 945 F g-1 at current density 0.5 A an excellent reproducing 92% after 10000 charge/discharge cycles. addition, NS showed exceptional power 3800-8000 W kg-1 74.9-157 Wh kg-1. results would pave new strategy design materials toward technology.

Язык: Английский

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High-Performance Flexible Supercapacitor Device Composed of a Hierarchical 2-D MXene-Ni(OH)₂ Nanocomposite and Biomass-Derived Porous Carbon Electrodes

Energy & Fuels, Год журнала: 2022, Номер 36(15), С. 8488 - 8499

Опубликована: Июль 13, 2022

The periodic layered structure due to the well-arranged sheets and presence of surface terminations (-OH, -O, -F) on those makes MXene an attractive aspirant for supercapacitor devices. Though exhibits interesting redox behavior, collapse its irreversible stacking retard reaction restrict ion transport process. To enhance electrochemical performance, we have developed a nanocomposite where α-Ni(OH)2 petals are slid within as well anchored surface. multivalent character Ni in Ni(OH)2 enhances performance nanocomposite. Fabrication high-performance flexible all-solid-state asymmetric (ASC) device has been carried out using this 50MXene-50Ni(OH)2 cathode biomass-derived porous carbon anode. This ASC manifested high energy density 29.3 W h kg–1 at power 800 90% retention specific capacitance (CS) even after ∼5000 GCD cycles. also demonstrated mechanically feature by showing consistent diverse physical deformations. illustrated competence real-world applications illuminating assembly LED lights.

Язык: Английский

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Ultrathin graphene@NiCo2S4@Ni-Mo layered double hydroxide with a 3D hierarchical flowers structure as a high performance positive electrode for hybrid supercapacitor

Journal of Energy Storage, Год журнала: 2022, Номер 52, С. 105049 - 105049

Опубликована: Июнь 9, 2022

Язык: Английский

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Nanoflower copper sulphide intercalated reduced graphene oxide integrated polypyrrole nano matrix as robust symmetric supercapacitor electrode material

Journal of Energy Storage, Год журнала: 2022, Номер 59, С. 106446 - 106446

Опубликована: Дек. 24, 2022

Язык: Английский

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Metal-organic framework derived nickel‑cobalt layered double hydroxide nanosheets cleverly constructed on interconnected nano-porous carbon for high-performance supercapacitors

Journal of Energy Storage, Год журнала: 2023, Номер 60, С. 106559 - 106559

Опубликована: Янв. 12, 2023

Язык: Английский

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