Vertical Graphene Growth on LDH Nanosheets and Carbon Cloth Nanofibers with NiCo Nanoparticles as a Freestanding Host for High-Performance Lithium–Sulfur Batteries

The Journal of Physical Chemistry Letters, Год журнала: 2025, Номер unknown, С. 1103 - 1113

Опубликована: Янв. 23, 2025

Lithium-sulfur batteries have been recognized as one of the excellent candidates for next-generation energy storage because their high density and low cost pollution. However, lithium-sulfur challenged by conductivity, sulfur utilization, poor cycle life, shuttle effect polysulfides. To address these problems, we report here an independent mixed host. First, NiCoAl-layered double hydroxide (LDH) nanosheets were uniformly grown on carbon cloth (CC) a hydrothermal method. Then, vertical graphene (VG) was vertically composite structures to form VG@LDH/CC plasma enhanced chemical vapor deposition (PECVD) Graphene LDH forming three-dimensional mesh structure can effectively physically block lithium polysulfides, store singlet sulfur, improve conductivity cathode. In addition, during growth graphene, Ni Co ions in are reduced NiCo nanoparticles, which enhance adsorption thus mitigating "shuttle effect" improving electrical material. The with derived anodes (VG@LDH/CC-S) exhibited electrochemical properties, including rate performance (780.8 mAh g-1 at 3C) impressive cycling stability (capacity decay about 0.0755% per after 750 cycles 0.5C).

Язык: Английский

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Configuring cations–doped cobalt lanthanum LDH nanoarray-on-nanoarray platforms for supercapacitors

Sustainable materials and technologies, Год журнала: 2025, Номер unknown, С. e01286 - e01286

Опубликована: Фев. 1, 2025

Язык: Английский

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Design and synthesis of nickel-cobalt-aluminum hydroxide battery electrode materials for high-performance hybrid supercapacitors

Journal of Power Sources, Год журнала: 2025, Номер 632, С. 236370 - 236370

Опубликована: Фев. 3, 2025

Язык: Английский

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Enhancement of OH– ion transport by the built-in electric field in NiCoCu-LDH@CoSe2 heterostructure for high-rate and long-cycle supercapacitors

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161062 - 161062

Опубликована: Фев. 1, 2025

Язык: Английский

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High-performance supercapacitor materials based on NiMn-LDH layered structures with MXene layers

Journal of Alloys and Compounds, Год журнала: 2024, Номер unknown, С. 176785 - 176785

Опубликована: Сен. 1, 2024

Язык: Английский

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Spindle‐Shaped Ni‐Fe‐Layered Double Hydroxide: Effect of Etching Time on Flexible Energy Storage

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract The rising demand for efficient energy storage in flexible electronics is driving the search materials that are well‐suited fabrication of these devices. Layered Double Hydroxides (LDHs) stand out as a remarkable material with layered structure embodies exceptional electrochemical properties. In this study, both double‐shelled and single‐shelled NiFe‐Layered Hydroxide (LDH) particles prepared using spindle‐shaped MIL‐101(Fe) template. These NiFe‐LDH then utilized to develop device. Transmission electron microscopy(TEM) analysis revealed as‐synthesized transformed into hollow single‐shells from aging time increased, which significantly influenced performances. Despite decreasing specific capacitance density longer etching times, sample etched 2 h (NiFe‐LDH 2h) demonstrated highest 9.24 mF·cm⁻ an 0.46 µW·h·cm⁻ , highlighting its promising performance applications. X‐ray photoelectron spectroscopy (XPS) Ni 2+ : 3+ ratio, Fe: ratio NiFe‐ LDH 2h samples, further influences ability maintain high across different bending angles emphasizes versatility relevance emerging markets.

Язык: Английский

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Electrochemical activation of conductive carbon cloth for high-performance negative electrode in supercapacitor

Journal of Energy Storage, Год журнала: 2025, Номер 115, С. 115968 - 115968

Опубликована: Март 2, 2025

Язык: Английский

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Defect engineering induced nanostructure changes of NiMo-layered double hydroxides/MOF heterostructure on battery type charge storage

Journal of Power Sources, Год журнала: 2025, Номер 639, С. 236685 - 236685

Опубликована: Март 4, 2025

Язык: Английский

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Tunable Hetero-assembly of 2D NiFeCr-LDH and MnO2 Nanosheets for High-Energy Quasi-Solid-State Ammonium-Ion Asymmetric Supercapacitors

Materials Today Physics, Год журнала: 2025, Номер unknown, С. 101711 - 101711

Опубликована: Март 1, 2025

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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