Unlocking the critical roles of N, P Co-Doping in MXene for Lithium‐Oxygen Batteries: Elevated d‐Band center and expanded interlayer spacing

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 676, С. 368 - 377

Опубликована: Июль 18, 2024

Язык: Английский

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High‐Entropy Strategy Flattening Lithium Ion Migration Energy Landscape to Enhance the Conductivity of Garnet‐Type Solid‐State Electrolytes

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 14, 2024

Abstract Garnet‐type solid‐state electrolytes with exceptional stability are believed to promote the commercialization of all lithium metal batteries. However, extensive application garnet‐type is greatly impeded on account their low ionic conductivity. Herein, a high‐entropy fast lithium‐ion conductor Li 7 (La,Nd,Sr) 3 (Zr,Ta) 2 O 12 (LLNSZTO) high lattice distortion designed. It found that enhanced conductivity entropy electrolyte LLNSZTO achieved by introducing disorder in lattice, which creates ion penetration paths flattened energy landscapes within pristine ordered lattice. Thus, prepared solid exhibits activation for + migration (0.34 eV) and elevated (6.26 × 10 −4 S cm −1 ). Full cells assembled electrolyte, anode, LiFePO 4 (LFP) cathode exhibit excellent capacity retention 86.81% after 200 cycles at room temperature. Moreover, superior enables battery high‐loading LFP (>12 mg −2 ), achieving stable cycling exceeding 120 cycles. The large area pouch cell (5.5 8 cm) long‐term performance, showing 96.50% 50

Язык: Английский

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Metal-organic frameworks as cathode electrocatalysts for Li-O2 batteries: A computational study of NiBTC and CuBTC by molecular dynamic simulation

Chemical Physics Letters, Год журнала: 2025, Номер unknown, С. 141862 - 141862

Опубликована: Янв. 1, 2025

Язык: Английский

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Unveiling the potential of high-entropy materials toward high-energy metal batteries based on conversion reactions: synthesis, structure, properties, and beyond

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104054 - 104054

Опубликована: Янв. 1, 2025

Язык: Английский

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High-entropy oxide nanozyme for T1/T2 dual-mode magnetic resonance imaging guided photothermal-nanocatalytic tumor therapy

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 687, С. 325 - 334

Опубликована: Фев. 8, 2025

Язык: Английский

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Metal- and Site-Specific Roles of High-Entropy Spinel Oxides in Catalytic Oxidative Polymerization of Water Contaminants

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 5928 - 5942

Опубликована: Март 27, 2025

Язык: Английский

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High-entropy spinel oxides as efficient ORR catalysts towards enhanced kinetics for zinc-air batteries

Journal of Energy Storage, Год журнала: 2025, Номер 123, С. 116784 - 116784

Опубликована: Апрель 25, 2025

Язык: Английский

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Upcycling Spent Cathodes from Li–Ion Batteries into a High-Entropy Alloy Catalyst with Reverse Electron Transfer for Li–O₂ Batteries

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Traditional recovery of valuable metals from spent ternary lithium-ion batteries concentrates on complicated pyrometallurgy and hydrometallurgy routes. Direct reutilization these used to catalyze Li-O2 is highly appealing yet remains a significant challenge. Here, we report general synthesis ultrafine αNiCoMn (α = Pt, Ir, Ru) high-entropy alloy (HEA) nanoparticles anchored nitrogen-doped carbon (N-C) support through facile one-step Joule heating, which serves as high-efficiency catalyst for batteries. Solution alloying recycled NiCoMn with Pt group facilitates catalytic efficiency 3d-5d electronic interactions the assembly effect. Both experimental calculation results reveal that, driven by rapid, nonequilibrium thermal shock, electron transfer defies conventional expectations, where electrons are inclined higher electronegative surrounding atoms. This interesting reverse local charge redistribution orbital hybridization endow an elevated d-band center optimized structure. The induced coordination effects further generate active catalysis surfaces, favoring adsorption LiO2 intermediates facilitating rapid decomposition kinetics nanoscale Li2O2 products. These advantages HEA@N-C superior bifunctional activity, achieving ultralow polarization 0.27 V significantly enhanced cycling life 240 cycles. We anticipate that this work will provide insights into upcycling constructing efficient HEA electrocatalysts.

Язык: Английский

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Defect Engineering in CuS_1‐x Nanoflowers Enables Low‐Overpotential and Long‐Cycle‐Life of Lithium‐Oxygen Batteries

Small, Год журнала: 2024, Номер 20(49)

Опубликована: Сен. 17, 2024

Abstract The defect engineering is essential for the development of efficient cathode catalysts lithium‐oxygen batteries. Herein, CuS 1 ‐x nanoflowers are fabricated by microwave hydrothermal method. Through theoretical and experimental analysis, S vacancies observed, which result in augmented charge around Cu, improved adsorption LiO 2, reduced overpotential. On one hand, generated electronic defects cause Fermi level to shift toward conduction band, enhances conductivity ion transfer. other increased provide a large number Cu active sites, increase transfer from 2 , improves stability intermediate adsorption. Interactively, 1‐ x catalyst obtains capacity 23,227 mAh g −1 cycle life 225 at 500 mA . This work will be helpful obtaining an providing deep understanding vacancy modulation advanced catalysts.

Язык: Английский

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Oriented Catalysis through Chaos: High-Entropy Spinels in Heterogeneous Reactions

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Дек. 27, 2024

This review provides an overview of the advances in high entropy spinel oxides diverse catalytic reactions and highlights intrinsic structure–property–performance relationships.

Язык: Английский

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