Chlorine bridge bond-enabled binuclear copper complex for electrocatalyzing lithium–sulfur reactions

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Апрель 15, 2024

Abstract Engineering atom-scale sites are crucial to the mitigation of polysulfide shuttle, promotion sulfur redox, and regulation lithium deposition in lithium–sulfur batteries. Herein, a homonuclear copper dual-atom catalyst with proximal distance 3.5 Å is developed for batteries, wherein two adjacent atoms linked by pair symmetrical chlorine bridge bonds. Benefiting from their unique coordination, increased active interface concentration synchronously guide evolutions species. Such delicate design breaks through activity limitation mononuclear metal center represents concept battery realm. Therefore, remarkable areal capacity 7.8 mA h cm −2 achieved under scenario content 60 wt. %, mass loading 7.7 mg electrolyte dosage 4.8 μL −1 .

Язык: Английский

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Innovative CeO2/γ-Fe2O3 composite cathodes for next-generation safe open system Li-ion batteries

Journal of Molecular Liquids, Год журнала: 2025, Номер 421, С. 126905 - 126905

Опубликована: Янв. 10, 2025

Язык: Английский

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Supramolecular channels via crown ether functionalized covalent organic frameworks for boosting polysulfides conversion in Li−S batteries

Energy storage materials, Год журнала: 2023, Номер 65, С. 103143 - 103143

Опубликована: Дек. 17, 2023

Язык: Английский

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Crystalline-amorphous heterostructure on the phosphatized P-CoS2/CNT for augmenting the catalytic conversion kinetics of Li-S batteries

Chemical Engineering Journal, Год журнала: 2024, Номер 488, С. 150696 - 150696

Опубликована: Март 25, 2024

Язык: Английский

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Steering sulfur reduction kinetics of lithium-sulfur batteries by interfacial microenvironment modulation

Energy storage materials, Год журнала: 2024, Номер 71, С. 103622 - 103622

Опубликована: Июль 4, 2024

Язык: Английский

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Synergistic Catalysis by Heterostructures Constructed with Transition Metals for Lithium–Sulfur Batteries

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Март 31, 2025

Язык: Английский

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Enhanced Al‐Storage Performance by Electronic Properties Optimization and Structural Customization in MOF‐Derived Heterostructure

Advanced Functional Materials, Год журнала: 2024, Номер 34(25)

Опубликована: Янв. 15, 2024

Abstract Chalcogenide cathodes with multi‐electron transfer characteristics are indispensable to aluminum‐ion batteries (AIBs). Nevertheless, their grievous capacity degradation and sluggish reaction kinetics remain fundamental challenges for the practical application. Herein, a Cu 2 S/Ni 3 S multiphase structure within metal‐organic frame (MOF) derived carbon decoration layer (CNS@MC) is constructed elevate intrinsic electronic properties of chalcogenide cathode realize high‐performance AIBs. The existence outer strong orbital interaction at inner heterointerfaces eliminates bandgap arises more electrons Fermi level, efficiently reducing energy barrier electron achieving high reactivity cathodes. CNS@MC also presents active solvent groups, which beneficial capture Al 3+ facilitate three‐electron charge‐storage reactions. Experimental results demonstrate that tailored possesses superior redox due sufficient surface area rapid Al‐ion diffusion during cycling. Meanwhile, robust delivers ultra‐high electrochemical stability (131.1 mAh g −1 over 3500 cycles) coulombic efficiency outstanding rate performance. This work offers new opportunities optimizing electrodes based on MOF derivatives heterostructure, providing novel thoughts designing

Язык: Английский

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Accelerating the consecutive conversion of polysulfides enabled by heterostructured Ni3Se4/FeSe2 tandem electrocatalyst for high-performance lithium-sulfur batteries

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 688, С. 11 - 21

Опубликована: Фев. 18, 2025

Язык: Английский

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A novel MCI-ECL dual organic ligand MOFs with low-potential by band gap regulation for ultrasensitive S.aureus detection

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162433 - 162433

Опубликована: Апрель 1, 2025

Язык: Английский

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Rose-like NiCo₂O₄ with Atomic-Scale Controllable Oxygen Vacancies for Modulating Sulfur Redox Kinetics in Lithium–Sulfur Batteries

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(14), С. 17493 - 17505

Опубликована: Апрель 2, 2024

The long-term stability of Li–S batteries is significantly compromised by the shuttle effect and insulating nature active substance S, constraining their commercialization. Developing efficient catalysts to mitigate lithium polysulfides (LiPSs) still a challenge. Herein, we designed synthesized rose-like cobalt–nickel bimetallic oxide catalyst NiCo2O4–OV enriched with oxygen vacancies (OV) verified controllable synthesis different contents OV. Introducing OV proved be an approach for controlling electronic structure electrocatalyst managing absorption/desorption processes on reactant surface, thereby addressing challenges posed LiPS sluggish transformation kinetics in batteries. In addition, investigated NiCo2O4 adsorption capacity LiPSs using experiments density functional theory (DFT) simulations. With increase level OV, binding energy between two enhanced, more obvious. contributes decomposition Li2S diffusion Li+ batteries, which promotes kinetic process

Язык: Английский

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