Metallosalen Covalent Organic Frameworks with Integrated Organic–Inorganic Active Sites for Enhanced Li Storage

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Abstract Covalent organic frameworks (COFs) hold great promise as cathode materials for lithium‐ion batteries (LIBs), but their limited conductivity has hindered broader application. In this study, a novel metallosalen COF (Cu‐TH‐COF) is introduced, synthesized via one‐pot method, incorporating redox‐active Cu ions into N 2 O pockets and creating an extended π‐d conjugated structure. This design merges inorganic active sites, enabling efficient multi‐electron transfer improving the utilization of sites in LIBs. The conjugation significantly enhances electronic conductivity, resulting improved rate performance. As result, Cu‐TH‐COF delivers impressive discharge capacity 300 mAh g −1 at 50 mA retains 174 4000 , outperforming its Cu‐free counterpart. study demonstrates first time potential COFs high‐performance opens up new strategy next‐generation

Язык: Английский

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Porphyrin‐Based Covalent Organic Frameworks for CO₂ Photo/Electro‐Reduction

Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown

Опубликована: Фев. 9, 2025

Photo/electro-catalytic CO2 reduction into high-value products are promising strategies for addressing both environmental problems and energy crisis. Duo to their advantageous visible light absorption ability, adjustable optic/electronic properties, definite active center, post-modification capability, excellent stability, porphyrin-based covalent organic frameworks (COFs) have emerged as attractive photo/electro-catalysts towards reduction. In this review, the research progress of COFs photo/electro-catalytic is summarized including design principles, catalytic performance, reaction mechanism. addition, review also presents some challenges prospects application in reduction, laying base fundamental efforts.

Язык: Английский

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Cation migration of layered oxide cathodes for sodium-ion batteries: fundamental failure mechanisms and practical modulation strategies

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

We comprehensively review the research advances in cation migration of sodium layered oxides, systematically revealing fundamental mechanisms and practical modulation strategies for irreversible leading to battery failure.

Язык: Английский

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Multifunctional separators with high safety and regulated ion transport for lithium-ion batteries

Journal of Power Sources, Год журнала: 2024, Номер 626, С. 235794 - 235794

Опубликована: Ноя. 11, 2024

Язык: Английский

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Transformation of vulnerable imine bond into aromatic in 3D COF for ultrastable lithium-ion batteries

Energy storage materials, Год журнала: 2024, Номер unknown, С. 103931 - 103931

Опубликована: Ноя. 1, 2024

Язык: Английский

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Encapsulating perovskite quantum dots into 3D COF for visible light-driven CO2 reduction

Science China Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Язык: Английский

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Porphyrin‐Based Covalent Organic Frameworks for CO₂ Photo/Electro‐Reduction

Angewandte Chemie, Год журнала: 2025, Номер unknown

Опубликована: Фев. 9, 2025

Abstract Photo/electro‐catalytic CO 2 reduction into high‐value products are promising strategies for addressing both environmental problems and energy crisis. Duo to their advantageous visible light absorption ability, adjustable optic/electronic properties, definite active center, post‐modification capability, excellent stability, porphyrin‐based covalent organic frameworks (COFs) have emerged as attractive photo/electro‐catalysts towards reduction. In this review, the research progress of COFs photo/electro‐catalytic is summarized including design principles, catalytic performance, reaction mechanism. addition, review also presents some challenges prospects application in reduction, laying base fundamental efforts.

Язык: Английский

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MoSe₂/Bi₂Se₃ Heterostructure Immobilized in N‐Doped Carbon Nanosheets Assembled Flower‐Like Microspheres for High‐Rate Sodium Storage

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Abstract A key challenge for sodium‐ion batteries (SIBs) lies in identifying suitable host materials capable of accommodating large Na + ions while addressing sluggish chemical kinetics. The unique interfacial effects heterogeneous structures have emerged as a critical factor accelerating charge transfer and enhancing reaction Herein, MoSe 2 /Bi Se 3 composites integrated with N‐doped carbon nanosheets are synthesized, which spontaneously self‐assemble into flower‐like microspheres (MoSe @N‐C). Electrochemical measurements density functional theory (DFT) calculations underscore the significant improvement kinetics enabled by structural advantages composite. Remarkably, nanosheet morphology provides more storage sites, uniformly distributed heterostructure can optimize carrier concentration alter electric field distribution, thereby facilitating enabling additional sodium ion storage. When employed an anode material SIBs, @N‐C exhibits exceptional performance, delivering reversible capacity 521.4 mAh g −1 at 1 800 cycles 407.9 10 over 1400 cycles. Notably, be fully restored to its initial level after cycling high current densities. This study, combining experimental theoretical insights, novel perspective on interface engineering advance practical application SIBs.

Язык: Английский

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Multiple active sites in robust covalent organic frameworks for high-performance lithium/sodium/potassium storage

Journal of Energy Storage, Год журнала: 2025, Номер 117, С. 116269 - 116269

Опубликована: Март 17, 2025

Язык: Английский

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Porphyrin-based covalent organic frameworks with undulated layers for efficient photocatalytic CO2 reduction

Science Bulletin, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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