Recent advancements in zero, one, two, and three-dimensional transition metal nitride-based supercapacitor electrodes

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 121, P. 116580 - 116580

Published: April 11, 2025

Language: Английский

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Heterostructured GCN Nanosheets/ZnO nanoflowers for enhanced TMO loading: From high-performance three electrode systems to printed flexible asymmetric supercapacitors

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157211 - 157211

Published: Oct. 1, 2024

Language: Английский

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Facile synthesis of mesoporous Co3O4 anchoring on the g-C3N4 nanosheets for high performance supercapacitor

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1008, P. 176689 - 176689

Published: Sept. 26, 2024

Language: Английский

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Engineering phosphorus vacancies in reduced graphene oxide anchored Co2P nanoparticles toward optimal supercapacitive properties

Fuel, Journal Year: 2025, Volume and Issue: 386, P. 134281 - 134281

Published: Jan. 4, 2025

Language: Английский

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Designing an Exfoliated Hexagonal Boron Nitride Nanosheets Embellished on Spherical ZnS as an Efficient Electrode for Hybrid Supercapacitor Applications

Energy Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Supercapacitors have evolved into a viable solution for confronting issues of energy demand modern technological world, but its most significant challenge is the construction novel electrode devices with long‐term accumulation. In this current work, exfoliated h‐BN‐ZnS nanocomposites been efficiently synthesized through an ultrasonication technique. The characterizations Raman, X‐ray diffraction, and photoelectron spectroscopy studies ensure successful preparation nanocomposites. Further, morphology visualized by field emission scanning electron microscopy high‐resolution transmission microscopy, displaying h‐BN nanosheets embellished over surface spherical‐shaped ZnS particles. electrochemical cyclic voltammetry, impedance spectroscopy, galvanostatic charge discharge tested in which NCs working reveals maximum specific capacity 919.09 C g −1 at 10 mV s . A hybrid supercapacitor device constructed assembling activated carbon as positive negative electrode, providing excellent 273.54 1 , achieving good density 64.20 Wh kg corresponding power 844.92 W showing 94.5% superior retention 5000 cycles respectively.

Language: Английский

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Iron Phosphate–Carbon Nanofiber Composite for High-Performance Asymmetric Hybrid Supercapacitors

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179956 - 179956

Published: March 1, 2025

Language: Английский

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Porous W2N fibrous nanograins and TiN nanopyramid framework for high-energy density flexible asymmetric supercapacitors

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(13)

Published: March 1, 2025

Enhancing the energy density of flexible asymmetric supercapacitors (ASCs) necessitates developing and implementing high-performance anode materials for technological developments in wearable storage systems. Tungsten nitride (W2N) offers enormous potential as an material ASCs, ascribed to its substantial specific capacitance, massive electrical conductivity, extended negative window. In this work, we fabricated a durable coin cell ASC utilizing W2N/SSM fibrous nanograins TiN/SSM nanopyramids cathode, both deposited over stainless steel mesh (SSM) substrate using DC magnetron sputtering technique. The W2N/SSM//TiN/SSM device demonstrates high areal capacitance 21.3 mF cm−2, operating across wide stable electrochemical voltage window 1.3 V, with outstanding cycling robustness, demonstrating 89.09% retention 8000 charge–discharge cycles. Notably, achieved 34.33 mWh.cm−3 power 17.32 W.cm−3. persistent performance is mainly attributed dominance surface-controlled capacitive pseudocapacitive charge kinetics Na+ ions, comprehensively examined employing 3D Bode Dunn's techniques. shows remarkable mechanical stability 92.36% 500 bending This study establishes W2N high-energy material, revealing capability increase effectiveness portable miniaturized devices.

Language: Английский

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Redox Additive Electrolytes for Supercapacitors: A Mini-Review on Recent Developments and Future Directions

Molecules, Journal Year: 2025, Volume and Issue: 30(8), P. 1764 - 1764

Published: April 15, 2025

Supercapacitors are promising energy storage devices that combine high power density, fast charge/discharge rates, and excellent cycling stability. However, their relatively low density compared to batteries remains a major challenge. To address this limitation, redox additive electrolytes have emerged as key strategy introduce reversible Faradaic reactions, significantly enhancing the capacity of supercapacitors. This mini-review systematically summarizes recent advancements in use redox-active species across aqueous, non-aqueous, solid-state/gel electrolytes. We highlight role both inorganic organic additives, detailing mechanisms, advantages, limitations improving Furthermore, we discuss challenges associated with species, such solubility, long-term stability, parasitic side which hinder practical applications. Future research directions proposed optimize materials electrolyte systems, aiming develop next-generation supercapacitors superior extended life, enhanced applicability.

Language: Английский

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Phase transition-induced optimization approach for magnesium-ion storage in MnO2: Enabling high-performance in aqueous hybrid and asymmetric supercapacitors

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 122, P. 116677 - 116677

Published: April 18, 2025

Language: Английский

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Growth of NiMoO4@MnCo2O4 core-shell structured double metal oxide composite electrodes on carbon cloth for flexible asymmetric supercapacitors

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 100, P. 113637 - 113637

Published: Sept. 6, 2024

Language: Английский

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