Construction of flexible and self-supported NiCo2Mn-LDH@Fe2O3 electrode materials with hierarchical core/shell heterostructures on carbon cloths for high-performance asymmetrical supercapacitors

Chemical Engineering Journal, Год журнала: 2024, Номер 500, С. 157183 - 157183

Опубликована: Окт. 30, 2024

Язык: Английский

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Structural Regulation and Performance Enhancement of Carbon-Based Supercapacitors: Insights into Electrode Material Engineering

Materials, Год журнала: 2025, Номер 18(2), С. 456 - 456

Опубликована: Янв. 20, 2025

The development of carbon-based supercapacitors is pivotal for advancing high energy and power density applications. This review provides a comprehensive analysis structural regulation performance enhancement strategies in supercapacitors, focusing on electrode material engineering. Key areas explored include pore structure optimization, heteroatom doping, intrinsic defect engineering, surface/interface modifications. These significantly enhance electrochemical through increasing surface area, improving conductivity, facilitating charge transfer, introducing additional pseudocapacitive reactions, optimizing the states at Fermi level, among other mechanisms. After these fundamental concepts, details various preparation methods their effects supercapacitor performance, highlighting interplay between properties. Challenges scaling advanced fabrication techniques ensuring long-term stability functionalized materials are discussed. Additionally, future research directions proposed, emphasizing cost-effective, scalable interdisciplinary approaches to design next-generation thereby meeting growing demand efficient sustainable storage solutions.

Язык: Английский

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Amorphous/Crystalline CoS_x/NiCo Layered Double Hydroxide Nanosheet Arrays for Asymmetric Supercapacitors

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Язык: Английский

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Free-Standing Leaf-Like CoNiSe₂/NC@Ni₃(PO₄)₂ Core–Shell Nanoarray Heterostructures for Flexible Asymmetric Supercapacitors

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

The rational design of a porous core–shell heterostructure with open spaces is an effective strategy to mitigate the aggregation and volume expansion active nanoelectrodes during charging/discharging processes. Herein, leaf-like CoNiSe2/NC@Ni3(PO4)2 hierarchical pores in situ grown on activated carbon cloth (CC) as free-standing electrode for flexible supercapacitors. collectively formed by both interspaces among adjacent structures channels vertically crossed Ni3(PO4)2 nanosheets not only significantly enhance electrolyte contact areas promote rapid penetration ion diffusion but also effectively buffer agglomeration nanoelectrode. Such unique spatial arrangement structure endow CoNiSe2/NC@Ni3(PO4)2/CC high specific capacitance 2505 F g–1 (1 A g–1) extended cycle life 91.1% capacity retention after 10,000 cycles, surpassing most reported electrodes similar compositions. combined experimental band analysis signifies that integrated CoNiSe2/Ni3(PO4)2 interfaces featuring optimized electronic accelerate charge transport improve redox-reaction kinetics, resulting significant enhancement electrochemical performance compared two individual components.

Язык: Английский

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Amorphous/Crystalline Heterostructured Nanomaterials: An Emerging Platform for Electrochemical Energy Storage

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 28, 2025

Abstract With the expanding adoption of large‐scale energy storage systems and electrical devices, batteries supercapacitors are encountering growing demands challenges related to their capability. Amorphous/crystalline heterostructured nanomaterials (AC‐HNMs) have emerged as promising electrode materials address these needs. AC‐HNMs leverage synergistic interactions between amorphous crystalline phases, along with abundant interface effects, which enhance capacity output accelerate mass charge transfer dynamics in electrochemical (EES) devices. Motivated by elements, this review provides a comprehensive overview synthesis strategies advanced EES applications explored current research on AC‐HNMs. It begins summary various Diverse devices AC‐HNMs, such metal‐ion batteries, metal–air lithium–sulfur supercapacitors, thoroughly elucidated, particular focus underlying structure–activity relationship among amorphous/crystalline heterostructure, performance, mechanism. Finally, perspectives for proposed offer insights that may guide continued development optimization.

Язык: Английский

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Rational construction of Tremella-like CuCo LDH@Ni3S2 nanocomposites as high-performance supercapacitor electrode materials

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179586 - 179586

Опубликована: Март 1, 2025

Язык: Английский

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Three-dimensional high-aspect-ratio microarray thick electrodes for high-rate hybrid supercapacitors

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 675, С. 505 - 514

Опубликована: Июль 5, 2024

Язык: Английский

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Alkaline capacity decay induced vacancy-rich LDH for high-performance magnesium ions hybrid supercapacitor

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 679, С. 43 - 53

Опубликована: Сен. 27, 2024

Язык: Английский

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Research Progress of Cobalt-Based Metal Organic Frameworks and Their Derivatives in Energy Storage and Conversion

ACS Omega, Год журнала: 2024, Номер 9(47), С. 46643 - 46663

Опубликована: Ноя. 13, 2024

With the rapid development of modern society, efficient and utilization new energy have become more important. The high-performance storage conversion devices has a decisive impact on sustainable use energy. In foreseeable future, exploration high-quality functional materials for will continue to be main goal pursued by scientific application fields. Metal organic frameworks (MOFs) merits adjustable porosity stable structure. Moreover, metal elements in MOFs could play role as active sites during electrochemical process. Thus, various kinds their derivatives been prepared used conversion. this work, applications potentials cobalt-based (Co-MOFs) supercapacitors, advanced batteries, catalysts reviewed summarized. properties, mechanisms, effects performance were described depth. A large number Co-MOFs with unique structures, well numerous Co-MOF composites, developed, excellent achieved, which already some most advantageous field. addition, current research status, difficulties, prospects Co-based comprehensively summarized at end study.

Язык: Английский

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Enhanced Wire‐Shaped Micro‐Supercapacitor Treated with a Continuous Surface Atmospheric Pressure Plasma Jet Approach

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

Abstract Microscale, wire‐shaped flexible supercapacitors are gaining significant attention due to the growing demand for wearable electronics and microrobotic technologies. Among various materials, copper sulfide stands out as an ideal candidate because of its superior electrochemical properties, which can be attributed nanostructured composition. This structure enhances surface area, reduces ion transport distances, improves charge–discharge kinetics. However, conventional electrode synthesis methods—such annealing hydrothermal processes—are limited by long production times scalability issues, making them unsuitable supercapacitor development. In this study, innovative fabrication technique using atmospheric pressure plasma jet (APPJ) both treatment material is proposed. By integrating APPJ with a winding mechanism, roll‐to‐roll processing continuous enabled, significantly enhancing manufacturing process. The fabricated microscale electrodes demonstrate high specific capacitance (153.39 mF cm −2 ), energy density (15.48 µWh excellent retention (91.32%) after 30 000 cycles. Furthermore, solid‐state asymmetric assembled in coaxial configuration. exhibits exceptional flexibility storage performance, underscoring practical applicability proposed method advanced electronics.

Язык: Английский

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