In-situ synthesized and induced vertical growth of cobalt vanadium layered double hydroxide on few-layered V2CTx MXene for high energy density supercapacitors

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 661, P. 460 - 471

Published: Feb. 1, 2024

Language: Английский

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Functional Graphdiyne for Emerging Applications: Recent Advances and Future Challenges

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(4)

Published: Oct. 20, 2023

Abstract Graphdiyne (GDY) is regarded as an exceptional candidate to meet the growing demand in many fields due its rich chemical bonds, highly π‐conjugated structure, uniformly distributed pores, large surface area, and high inhomogeneity of charge distribution. The extensive research efforts bring about a rapid expansion GDY with variety functionalities, which significantly enhance performance including photocatalysis, energy, biomedicine, etc. In this review, synthetic strategies (in situ ex approaches) that are designed rationally functionalize GDY, optimizing their nanostructures by surface/interface engineering dopants or functional groups (heteroatoms/small molecules/macromolecules), building up hierarchical GDY‐based heterostructures highlighted. Theoretical calculations on structural evolution electronic characteristics after functionalization briefly discussed. With elaborate rational structure engineering, applied emerging applications (e.g., hydrogen reaction, CO 2 reduction nitrogen energy storage conversion, nanophotonics, sensors, biomedical applications, etc.) comprehensively Finally, challenges prospects concerning future development nanoarchitectures also presented.

Language: Английский

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Recent Development on Transition Metal Oxides‐Based Core–Shell Structures for Boosted Energy Density Supercapacitors

Small, Journal Year: 2024, Volume and Issue: 20(31)

Published: April 9, 2024

Abstract In recent years, nanomaterials exploration and synthesis have played a crucial role in advancing energy storage research, particularly supercapacitor development. Researchers diversified materials, including metal oxides, chalcogenides, composites, as well carbon to enhance power density. Balancing density with electrochemical stability remains challenging, driving intensified efforts electrode materials. This review focuses on progress designing synthesizing core–shell materials tailored for supercapacitors. The architecture offers advantages such increased surface area, redox active sites, electrical conductivity, ion diffusion kinetics, specific capacitance, cyclability. explores the impact of core shell specifically transition oxides (TMOs), behavior. Metal oxide choices, cobalt preferred manganese shell, are discussed. also highlights characterization techniques assessing structural, morphological, properties Overall, it provides comprehensive overview ongoing TMOs‐based material research supercapacitors, showcasing their potential applications ranging from gadgets electric vehicles. outlines existing challenges future opportunities evolving advancements, holding promise high‐efficiency devices.

Language: Английский

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

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 74, P. 109319 - 109319

Published: Oct. 26, 2023

Language: Английский

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Rational design and synthesis of a 3D hierarchical NiCo-LDH/C/GF composite foam as advanced electrodes for asymmetric supercapacitors

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 977, P. 173425 - 173425

Published: Jan. 4, 2024

Language: Английский

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In situ construction of sea urchin-like structural NiCo-LDH coated cobalt‑nitrogen co-doped carbon as high-performance electrode for supercapacitor

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 100, P. 113510 - 113510

Published: Aug. 30, 2024

Language: Английский

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Introduction of bimetallic oxide-modified carbon nanotubes for boosting the energy storage performance of NiCo-LDH based in-plane micro-supercapacitors on paper

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153242 - 153242

Published: June 18, 2024

Language: Английский

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A flexible, binder-free electrodes using nickel-cobalt sulfur modified carbon nanofibers for asymmetric supercapacitor applications

Electrochimica Acta, Journal Year: 2024, Volume and Issue: 498, P. 144683 - 144683

Published: July 6, 2024

Language: Английский

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Multishell hierarchical GCNF/PANI/NiCo-LDH nanofibers film for high-performance supercapacitors

Electrochimica Acta, Journal Year: 2024, Volume and Issue: unknown, P. 145410 - 145410

Published: Nov. 1, 2024

Language: Английский

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In Situ Grown Oxygen‐Vacancy Rich NiCo‐LDHs for High‐Performance Supercapacitors

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(8)

Published: Feb. 1, 2025

Abstract Layered double hydroxides (LDHs) are increasingly recognized as highly promising electrode materials for supercapacitors, owing to their exceptional specific capacitance, notable redox activity, and superior anion exchange capability. However, several challenges still need be addressed achieve the theoretical capacitance excellent rate capacity, including poor electronic ionic conductivity. In this study, a two‐step method was employed prepare high conducting NiCo‐LDH‐ V o materials, demonstrating enhanced electrochemical performance supercapacitor electrodes. First, NiCo‐LDH directly electrodeposited onto high‐conductivity nickel foam, which conductivity avoided effects of adhesives. Second, soak in H 2 O solution introduce more oxygen vacancies. The resulting exhibited higher electron ion diffusion ability, leading increased capacity long‐term stability (771.8 C g −1 at 1 A with an retention 92%).

Language: Английский

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