One stone for four birds: A “chemical blowing” strategy to synthesis wood-derived carbon monoliths for high-mass loading capacitive energy storage in low temperature

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 653, P. 1526 - 1538

Published: Sept. 29, 2023

Language: Английский

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Gradient Pores Enhance Charge Storage Density of Carbonaceous Cathodes for Zn‐Ion Capacitor

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(23)

Published: Feb. 13, 2024

Abstract Engineering carbonaceous cathode materials with adequately accessible active sites is crucial for unleashing their charge storage potential. Herein, activated meso‐microporous shell carbon (MMSC‐A) nanofibers are constructed to enhance the zinc ion density by forming a gradient‐pore structure. A dominating pore size of 0.86 nm tailored cater solvated [Zn(H 2 O) 6 ] 2+ . Moreover, these gradient porous feature rapid ion/electron dual conduction pathways and offer abundant surfaces high affinity electrolyte. When employed in Zn‐ion capacitors (ZICs), electrode delivers significantly enhanced capacity (257 mAh g −1 ), energy (200 Wh kg at 78 W cyclic stability (95% retention after 10 000 cycles) compared nonactivated electrode. series situ characterization techniques unveil that improved Zn capability stems from compatibility between pores , co‐adsorption H + SO 4 2− as well reversible surface chemical interaction. This work presents an effective method engineering toward energy‐density storage, also offers insights into mechanism such structures.

Language: Английский

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Carbon-based nanomaterials for stabilizing zinc metal anodes towards high-performance aqueous zinc-ion batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: 67, P. 103300 - 103300

Published: March 1, 2024

Language: Английский

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Thiocyanogen-modulated N, S Co-doped lignin hierarchical porous carbons for high-performance aqueous supercapacitors

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 667, P. 147 - 156

Published: April 16, 2024

Language: Английский

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Solvent-guided nanoarchitecturing of heterodiatomic carbon superstructures for high-performance zinc-ion hybrid capacitors

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 148912 - 148912

Published: Jan. 22, 2024

Language: Английский

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Controllable synthesis of electric double-layer capacitance and pseudocapacitance coupled porous carbon cathode material for zinc-ion hybrid capacitors

Nanoscale, Journal Year: 2024, Volume and Issue: 16(7), P. 3701 - 3713

Published: Jan. 1, 2024

The designability of the porous structure carbon material makes it a popular for zinc-ion hybrid capacitors (ZIHCs).

Language: Английский

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Dicyandiamide assisted highly interconnected hierarchal pore structures in coal tar pitch-derived carbon towards high-performance Zn-ion hybrid capacitor

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120019 - 120019

Published: Jan. 1, 2025

Language: Английский

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Crystalline‐Amorphous Phase and Oxygen Vacancies Synergistically Regulate Vanadium Electronic States for Unleashing Zinc‐Ion Storage Performance

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

Published: March 20, 2025

Abstract Zinc‐ion capacitors (ZICs) are emerging as a compelling choice for energy storage in future, promising high power and densities coupled with eco‐friendly characteristics. This work presents novel approach to enhance the performance of ZICs by employing one‐step solvothermal synthesis growth V‐MOF on surface V 2 CT X ‐MXene, followed annealing fabricate 3D cross‐linked VO /V ‐MXene‐x(VO /MXene‐x) composite. The unique structure demonstrates excellent conductivity redox reaction activity, which significantly shortens Zn 2+ diffusion path. Moreover, intertwined crystalline‐amorphous efficiently suppresses lattice volume expansion during (de)intercalation. Density functional theory (DFT) reveals that amorphous O 5 enhances conductivity, lowers capture barrier, improves charge transfer efficiency. introduction oxygen vacancies further electronic transport. /MXene‐4 composite exhibits specific capacity 336.39 mAh g −1 at 1 A , maintaining 213.06 10 indicating outstanding rate performance, along an density 356.27 Wh kg 1280 W . offers insights design electrode materials feature phases, providing valuable into ion transport mechanisms strategies kinetics.

Language: Английский

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High Energy Density Aqueous Zinc–Chalcogen (S, Se, Te) Batteries: Recent Progress, Challenges, and Perspective

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(44)

Published: Oct. 11, 2023

Abstract Zinc‐ion batteries with chalcogen‐based (S, Se, Te) cathodes have emerged as a promising candidate for utility‐scale energy storage systems and portable electronics, which attracted rapid attention offer tremendous opportunities owing to their excellent density, on top of the advantages aqueous Zn including cost‐effectiveness, inherent safety, eco‐friendliness. Here, comprehensive overview basic mechanism zinc–chalcogen great intrinsic issues is provided. More detailed recent progress summarized existing challenges strategies are provided well. First, four specific types presented, including: zinc–sulfur, zinc–selenium, zinc–selenium sulfide, zinc–tellurium batteries. Second, remaining within in material preparation, physicochemical properties, battery performance discussed. Meanwhile, series constructive comprehensively put forward optimizing electrochemical performance. Finally, future research perspectives proposed exploration innovation next‐generation green zinc applications.

Language: Английский

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Modulating pore nanostructure coupled with N/O doping towards competitive coal tar pitch-based carbon cathode for aqueous Zn-ion storage

Carbon, Journal Year: 2023, Volume and Issue: 216, P. 118523 - 118523

Published: Oct. 17, 2023

Language: Английский

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