Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157873 - 157873
Published: Nov. 1, 2024
Language: Английский
Small, Journal Year: 2025, Volume and Issue: unknown
Published: April 17, 2025
Abstract Metal–organic coordination polymers (MOPs) comprised of redox‐active organic moieties and metal ions emerge as an important class electroactive materials for battery applications. The bipolar two transition metal‐based (Fe Co) complexes bearing terpyridine‐triphenylamine ligand are used models to investigate the relationships between structure electrochemical performance. It turned out that choice central atom has a profound influence on practical voltage window specific capacity. high‐performing poly(FeL) n electrode exhibits reversible capacity 272.5 mAh g −1 after 100 cycles at 50 mA , excellent cycling stability up 4000 5A (capacity ration:83.1%), rate poly(CoL) significantly lower 107 100th cycle inferior (54 retention: 38.7%). DFT analysis indicates center directly influences electron cloud density metal‐terpyridine structure, which in turn affects redox activity polymer by varying affinity lithium charge transfer efficiency. These findings highlight importance centers polymers, providing direct guidance exploration MOPs novel resource‐friendly cathode materials.
Language: Английский
Citations
1
Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 807 - 816
Published: June 5, 2024
Language: Английский
Citations
8
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 12, 2024
Redox-active covalent organic frameworks (COFs) are promising candidates for sodium-ion batteries (SIBs). However, the construction of redox-bipolar COFs with anions and cations co-storage feature SIBs is rarely reported. Herein, COF constructed from aniline-fused quinonoid units (TPAD-COF) developed as cathode material in first time. The unique integration conductive aniline skeletons quinone redox centers endows TPAD-COF high ionic/electrical conductivity, abundant redox-active sites, fascinating bipolar features. Consequently, elaborately tailored exhibits higher specific capacity (186.4 mAh g
Language: Английский
Citations
8
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 29, 2025
Abstract 2D electronically conductive porous coordination polymers/metal–organic frameworks (2D EC‐MOFs) of M‐HHTPs (HHTP = 2,3,6,7,10,11‐hexahydroxytriphenylene; M Co, Ni, Cu, etc.) have received extensive attention due to their ease preparation, semiconductive properties, and tunability based on the choice metal species. However, slight shifts between layers attenuate specific surface area stability. In this study, metal‐ion bridge strategy is newly adopted a vanadyl counterpart M‐HHTP synthesized with chemical formula (VO) 3 (HHTP) 2 , hereafter referred as VO‐HHTP. The semiconductor VO‐HHTP has vertical interconnection by octahedral VO 6 chains exhibits relatively high (ca. 590 m g −1 ) compared other EC‐MOFs. Motivated its redox activity nature, applied cathode material in rechargeable aqueous zinc batteries (RAZBs). demonstrates capacity 240 mAh excellent rate capability, even reduced amount agent, surpassing performance previous Furthermore, stable structure ensures long‐term cycling stability, addressing common issue work contributes development new concepts both design π ‐conjugated EC‐MOFs study materials for RAZBs.
Language: Английский
Citations
0
Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 18, 2025
Abstract Unstable metallic Zn anode (MZA)/electrolyte interfacial chemistry has long blocked the practical implementation of aqueous metal batteries (ZMBs). Herein, this study presents an innovative surface topology optimization engineering via efficient laser‐texturing technique to achieve front‐end design MZA for enhanced interface stability. Specifically, laser‐textured features in situ formed ZnO coating with a high‐density, ordered micro‐pits array architecture (LT‐Zn@ZnO). Systematic experimental analyses and theoretical calculations reveal that LT‐Zn@ZnO ensures more uniform electric field distribution stronger corrosion resistance than pristine foil. These enhancements effectively suppress dendrite proliferation hydrogen evolution on surface, achieving stable LT‐Zn@ZnO/electrolyte chemistry. Therefore, acquires exceptional electrochemical reversibility, sustaining over 1840 h at 10 mA cm − 2 /1 mAh . This results assembled large‐sized (24 ) LT‐Zn@ZnO||Ti@MnO₂ pouch cell higher initial capacity 158.6 significantly improved rechargeability, retaining 105 after 400 cycles, compared employing untreated foil, which 144.7 failed fewer 200 cycles. The presented topography strategy offers solution enhancement MZA, leading reversibility toward ZMBs satisfactory rechargeability.
Language: Английский
Citations
0
Chemical Science, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
The structural design strategies and recent representative examples of 2D c-MOFs applied in electrocatalysis energy storage systems are introduced.
Language: Английский
Citations
0
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 28, 2025
Abstract Metallosupramolecular polymers (MSPs) have shown great potential in the area of oxygen electrocatalysis due to their tunable electronic structure, and predictable coordination environment. Further exploration structure−performance relationships electrocatalysts is crucial for designing highly efficient catalysts. Herein, a strategy proposed prepare MSP‐based bifunctional with different electrocatalytic preferences (Co‐AQ Co‐AN) by adjusting structure organic linkers. The effects linkers significantly influence adsorbate evolution mechanism. Co‐AQ, an electron‐withdrawing linker, demonstrated superior OER activity among two overpotential 280 mV at 10 mA cm −2 340 50 . In contrast, Co‐AN, electron‐donating exhibited outstanding ORR large limiting current density 6.14 Furthermore, Co‐AQ‐based Zn–air battery showed high power (135 mW ) excellent cycling stability 100 h. This work presents novel approach performance further reveals electrocatalysts.
Language: Английский
Citations
0
Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 146161 - 146161
Published: April 1, 2025
Language: Английский
Citations
0
Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown
Published: May 16, 2025
Two-dimensional conjugated metal-organic frameworks (2D c-MOFs) represent a promising class of electrode materials for potassium-ion batteries (PIBs), attributed to their superior conductivity, large specific surface area, high charge carrier mobility, and tunable active sites. However, most reported 2D c-MOF-based cathode PIBs usually encounter challenges, such as low capacity inadequate cycling stability. In this context, we herein designed synthesized new hexahydroxy salicylamide ligand (6OH-HBB) via straightforward two-step synthesis with yield 93%, which was subsequently utilized construct Cu-HBB-MOF multiple sites through an in situ metal coordination-induced planarization strategy. Thanks its abundant the demonstrated outstanding initial 228.1 mA h g-1 at 0.2 A g-1, surpassing porous material-based PIBs. Furthermore, even 5.0 exhibited reversible 103.6 after 2500 cycles, simultaneously maintaining low-capacity loss only 0.011% per cycle achieving Coulombic efficiency up 100%, demonstrating good long-term This work provides fundamental insights into engineering c-MOFs multisite functionality, charting course developing high-performance MOF-based cathodes next-generation energy storage systems.
Language: Английский
Citations
0
Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 698, P. 137997 - 137997
Published: May 26, 2025
Language: Английский
Citations
0