Assembling zinc cobalt hydroxide/ternary sulfides heterostructure and iron oxide nanorods on three-dimensional hollow porous carbon nanofiber as high energy density hybrid supercapacitor

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 60, P. 106713 - 106713

Published: Jan. 26, 2023

Language: Английский

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Vanadium doping and phosphorus vacancy co-regulation of biotemplate derived three-dimensional cobalt phosphide to enhance pseudocapacitance performance

Applied Surface Science, Journal Year: 2023, Volume and Issue: 622, P. 156950 - 156950

Published: March 8, 2023

Language: Английский

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Integrating V-doped CoP on Ti3C2Tx MXene-incorporated hollow carbon nanofibers as a freestanding positrode and MOF-derived carbon nanotube negatrode for flexible supercapacitors

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146351 - 146351

Published: Sept. 30, 2023

Language: Английский

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Oxygen-vacancy europium-doped MnO2 ultrathin nanosheets used as asymmetric supercapacitors

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 60, P. 106673 - 106673

Published: Jan. 19, 2023

Language: Английский

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Biomimetic Sea Urchin-like Nano-ferrite Structures for Microwave Absorption

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(3), P. 3001 - 3011

Published: Jan. 19, 2024

Wideband absorption with low-frequency compatibility is always challenging for developing high-performance electromagnetic wave (EMW) absorbing materials. With magnetic loss and a sufficient polarization interface, ferrite materials are promising candidates overcoming this challenge. To address impedance matching issues, carrier material uniform pore distribution, namely, diatomite, employed, resulting in unique three-dimensional biomimetic structure. A sea urchin-like nanomaterial composed of one-dimensional nanorod-shaped Fe3O4 (sea nano-Fe3O4) presented, demonstrating outstanding performance EMW absorption. The optimized Fe3O4@FeP sample exhibits two peaks spanning the C Ku bands when thickness 5.35 mm. experimental results show that nano-Fe3O4 achieves an astounding reflection −60 dB at 6 GHz 3.9 mm maximum effective bandwidth 4 1.7 This design holds significant potential applications.

Language: Английский

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Designing transition metal-based porous architectures for supercapacitor electrodes: a review

RSC Advances, Journal Year: 2024, Volume and Issue: 14(16), P. 11482 - 11512

Published: Jan. 1, 2024

This review summarizes the typical synthesis strategies and conversion mechanisms of porous transition metal-based electrode materials discusses their energy storage characteristics challenges in supercapacitors a categorical manner.

Language: Английский

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Activated Carbon Electrodes for Supercapacitors from Purple Corncob (Zea mays L.)

ACS Environmental Au, Journal Year: 2024, Volume and Issue: 4(2), P. 80 - 88

Published: Jan. 5, 2024

Activated carbon-based supercapacitor electrodes synthesized from biomass or waste-derived have recently attracted considerable attention because of their low cost, natural abundance, and power delivery performance. In this work, purple-corncob-based active carbons are prepared by KOH activation subsequently evaluated as a composite electrode for supercapacitors using either an acidic alkali solution the electrolyte. The synthesis material involves mixing purple corncob powder with different concentrations (in range 5% to 30%) thermal treatment at 700 °C under inert atmosphere. Physicochemical characterizations were performed scanning electron microscopy, Raman spectroscopy, N2 physisorption analysis, Fourier-transform infrared X-ray photoelectron while electrochemical characteristics determined cyclic voltammetry, galvanostatic charge/discharge curve, impedance techniques measured in three- two-electrode system. Composite activated 10% had specific surface area 728 m2 g–1, high capacitances 195 F g–1 0.5 A 1 mol L–1 H2SO4 116 obtained. It also presented 76% capacitance retention after 50 000 cycles. These properties depend significantly on microporous micropore volume carbon. Overall, our results indicate that has interesting prospect carbon precursor electrodes.

Language: Английский

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Ion-Sieving Separator Functionalized by Natural Mineral Coating toward Ultrastable Zn Metal Anodes

ACS Nano, Journal Year: 2024, Volume and Issue: 18(37), P. 25880 - 25892

Published: Sept. 5, 2024

Aqueous zinc-ion batteries (AZIBs) exhibit promising prospects in becoming large-scale energy storage systems due to environmental friendliness, high security, and low cost. However, the growth of Zn dendrites side reactions remain heady obstacles for practical application AZIBs. To solve these challenges, a functionalized Janus separator is successfully constructed by coating halloysite nanotubes (HNTs) on glass fiber (GF). Impressively, different electronegativity inner outer surfaces HNTs endows HNT-GF with ion-sieving property, leading significantly transference number

Language: Английский

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Advanced strategies for enhancing electrochemical performance of NiAl LDH electrodes in supercapacitors

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 531, P. 216497 - 216497

Published: Feb. 10, 2025

Language: Английский

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Modulating energy storage and electrocatalytic properties of molybdates through forming solid solutions

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160273 - 160273

Published: Feb. 1, 2025

Language: Английский

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