Enhanced performance of hybrid supercapacitors by the synergistic effect of Co(OH)2 nanosheets and NiMn layered hydroxides

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 646, P. 753 - 762

Published: May 20, 2023

Language: Английский

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Hierarchical three-dimensional nanoflower-like CuCo2O4@CuCo2S4@Co(OH)2 core-shell composites as supercapacitor electrode materials with ultrahigh specific capacitances

Applied Surface Science, Journal Year: 2024, Volume and Issue: 653, P. 159407 - 159407

Published: Jan. 18, 2024

Language: Английский

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Porous MnCo2O4 nanoplatelets and nanoflowers as cathode materials for high-performance asymmetric supercapacitor application

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 112, P. 115587 - 115587

Published: Jan. 28, 2025

Language: Английский

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A Refined Stepwise Carbonation Strategy for Controllable Synthesis of Porous Carbon for High‐Performance Zinc‐Ion Hybrid Capacitors

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract The precise tailoring of the composition and structure porous carbon is crucial for its application in capacitors. Herein, a refined stepwise carbonization strategy, involving holding material at melting temperature metal salts controlled carbonization, proposed to precisely design coal tar pitch (CTP)‐based carbon. effectively modulates yield, pore structure, defect level Dwelling point promotes dehydration‐condensation CTP stabilizes skeleton, yielding high content. Theoretical calculations elucidate interaction between hydroxyl oxygen CTP, energy barrier as metric evaluate ability regulate microcrystalline proposed. Meanwhile, sodium alginate gels induced by aforementioned are prepared, zinc‐ion hybrid capacitor assembled with prepared gel exhibits superior specific capacity (219 mAh g −1 ), density (176.2 Wh kg broad range applicability (−40–75 °C). This study proposes universal method controlling capacitance properties CTP‐based It holds promise broadening scope preparation other materials.

Language: Английский

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In-situ growth of VS4 nanorods on Ni-Fe sulfides nanoplate array towards achieving a highly efficient and bifunctional electrocatalyst for total water splitting

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 474, P. 145461 - 145461

Published: Aug. 21, 2023

Language: Английский

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Enhanced electrochemical performance of fabricated asymmetric supercapacitor in redox additive electrolyte

Ceramics International, Journal Year: 2023, Volume and Issue: 50(3), P. 5775 - 5786

Published: Dec. 1, 2023

Language: 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, Journal Year: 2024, Volume and Issue: 94, P. 112454 - 112454

Published: June 13, 2024

Language: Английский

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Investigating composite electrode materials of metal oxides for advanced energy storage applications

Nano Convergence, Journal Year: 2024, Volume and Issue: 11(1)

Published: July 30, 2024

Abstract Electrochemical energy systems mark a pivotal advancement in the sector, delivering substantial improvements over conventional systems. Yet, major challenge remains deficiency storage technology to effectively retain produced. Amongst these are batteries and supercapacitors, renowned for their versatility efficiency, which depend heavily on quality of electrode materials. Metal oxide composites, particular, have emerged as highly promising due synergistic effects that significantly enhance functionality efficiency beyond individual components. This review explores application metal composites electrodes SCs, focusing various material perspectives synthesis methodologies, including exfoliation hydrothermal/solvothermal processes. It also examines how methods influence device performance. Furthermore, confronts challenges charts future directions composite-based systems, critically evaluating aspects such scalability synthesis, cost-effectiveness, environmental sustainability, integration with advanced nanomaterials electrolytes. These factors crucial advancing next-generation technologies, striving performance while upholding sustainability economic viability.

Language: Английский

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Nanostructured binary transition-metal-sulfides and nanocomposites as high-performance electrodes for hybrid supercapacitors

Applied Physics Reviews, Journal Year: 2024, Volume and Issue: 11(2)

Published: May 13, 2024

Supercapacitors (SCs) are attractive as promising energy storage devices because of their distinctive attributes, such high power density, good current charge/discharge ability, excellent cyclic stability, reasonable safety, and low cost. Electrode materials play key roles in achieving performance these SCs. Among them, binary transition metal sulfides (BTMSs) have received significant attention, attributed to conductivity, abundant active sites, electrochemical properties. This topic review aims summarize recent advances principles, design, evaluation the for nanostructured BTMSs (including nickel–cobalt sulfides, zinc–cobalt copper–cobalt sulfides.) nanocomposites those carbon nanomaterials, oxides, polymers). Nanostructuring well effects on were discussed, including nanoparticles, nanospheres, nanosheets, nanowires, nanorods, nanotubes, nanoarrays, hierarchitectured nanostructures. Their has further been reviewed specific capacitance, rate capability, cycling stability. In addition, hybrid supercapacitors (HSCs) assembled using cathodes also summarized compared. Finally, challenges prospects HSCs-based BTMS electrodes presented.

Language: Английский

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Advances in design of copper-based nanostructures and nanocomposites for high-performance supercapacitors

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 99, P. 113383 - 113383

Published: Aug. 18, 2024

Language: Английский

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