A comprehensive review on supercapacitors: Their promise to flexibility, high temperature, materials, design, and challenges

Energy, Год журнала: 2024, Номер 295, С. 131043 - 131043

Опубликована: Март 22, 2024

Язык: Английский

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Stability study of transition metal oxide electrode materials

Journal of Power Sources, Год журнала: 2023, Номер 560, С. 232710 - 232710

Опубликована: Янв. 24, 2023

Язык: Английский

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The electrochemical performance of various NiCo2O4 nanostructures in hybrid supercapacitors: Investigating the impact of crystalline defects

Journal of Energy Storage, Год журнала: 2024, Номер 84, С. 110717 - 110717

Опубликована: Фев. 16, 2024

Binary metal oxides exhibit a compelling combination of features that make them highly attractive electrode materials for supercapacitors. Herein, facile hydrothermal method is employed the preparation defect-rich hierarchical nanostructured NiCo2O4 with various morphologies, including urchin-like nanostructure, nanoflowers, and 2D nanosheets; their electrochemical performances as electrodes hybrid supercapacitor are studies. Notably, based on nanostructure high oxygen vacancies delivers gravimetric energy density 45.2 Wh/kg at power 750 W/kg, maintaining remarkable cycling stability. The exhibits specific capacitance 423.9 292.0 F/g current 1.5 7.5 A/g, respectively, capacitive retention ≈ 94 % after 1500 cycles. Crystalline defects identified in suggested to significantly contribute ionic/electrical conductivity stability electrodes.

Язык: Английский

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Recent trends in hierarchical electrode materials in supercapacitor: Synthesis, electrochemical measurements, performance and their charge-storage mechanism

Journal of Energy Storage, Год журнала: 2024, Номер 94, С. 112454 - 112454

Опубликована: Июнь 13, 2024

Язык: Английский

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In-situ formation of MOFs derivatives CoSe2/Ni3Se4 nanosheets on MXene nanosheets for hybrid supercapacitor with enhanced electrochemical performance

Journal of Alloys and Compounds, Год журнала: 2022, Номер 920, С. 165908 - 165908

Опубликована: Июнь 18, 2022

Язык: Английский

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Recent Progress in Co₃O₄‐Based Nanomaterials for Supercapacitors

ChemNanoMat, Год журнала: 2023, Номер 9(5)

Опубликована: Фев. 21, 2023

Abstract Supercapacitors which have been widely used in portable electronics and hybrid electric vehicles are considered to be fascinating energy storage devices owing their higher density than traditional capacitors power batteries. The performance of supercapacitors is much dependent on the properties electrode materials, effort has devoted exploring high‐performance electrodes. During past decade, cobalt‐based especially Co 3 O 4 its composites, regarded as prominent materials for view relatively low cost, high theoretical specific capacitance, non‐toxicity, excellent electrochemical activity. In this review, we attempt provide some basic insights into rational design based materials/composites capacitive supercapacitors. advantages a supercapacitor material summarized, many examples illustrated. remaining challenges exploration ‐based efficient electrodes also discussed future research directions offered.

Язык: Английский

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Nanospheres type Morphology for regulating the electrochemical property of CeO2 nanostructures for energy storage system

Journal of Sol-Gel Science and Technology, Год журнала: 2023, Номер 106(1), С. 121 - 130

Опубликована: Янв. 19, 2023

Язык: Английский

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Unlocking the full energy densities of carbon-based supercapacitors

Materials Research Letters, Год журнала: 2023, Номер 11(7), С. 517 - 546

Опубликована: Март 7, 2023

Carbon-based supercapacitors (SCs) have limited energy density due to sluggish mass diffusion and restricted charge accumulation. To increase the of carbon-based SCs, attention must be paid factors specific capacitance electrochemical stability window. This review summarizes recent signs progress in materials, including surface area, pore structure regulation, heteroatom doped, carbon composites. In addition, we discuss aqueous, organic, ionic liquid electrolytes that affect window SCs. Finally, possibilities for achieving synergy electrode/electrolytes are summarized via enhancing pseudocapacitance contribution developing high-voltage electrolytes.

Язык: Английский

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Mechanism research progress on transition metal compound electrode materials for supercapacitors

Rare Metals, Год журнала: 2024, Номер 43(9), С. 4076 - 4098

Опубликована: Май 30, 2024

Язык: Английский

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Review of Battery-type Transition Metal (Cu, Co, and Ni) Oxide Based Electrodes: From Fundamental Science to Fabrication of a Hybrid Supercapacitor Device

Energy & Fuels, Год журнала: 2024, Номер 38(13), С. 11455 - 11493

Опубликована: Июнь 18, 2024

Energy storage (electrochemical) devices such as batteries and supercapacitors present crucial components of alternate energy sources which can cater to the high requirements around globe. Enhancing density supercapacitor electrodes on par with is yet another challenging target. A way resolve issue incorporation battery-like in device. Battery-like rely reversible Faradaic reactions happening throughout electroactive surface area electrode for accumulation charge. are sometimes misunderstood pseudocapacitor-type redox properties, creates a lot confusion. Hence motivation behind this review first provide pristine picture fundamentals battery-type electrodes; second, differentiate from pseudocapacitor finally, describe some recent trends fabrication hybrid (HSCs) taking transition metal (Cu, Co, Ni) oxide-based electrodes.

Язык: Английский

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