Chemical‐Stabilized Aldehyde‐Tuned Hydrogen‐Bonded Organic Frameworks for Long‐Cycle and High‐Rate Sodium‐Ion Organic Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(21)

Published: Jan. 15, 2024

Abstract Hydrogen‐bonded organic frameworks (HOFs) are considered as potential choice for future energy storage systems due to their adjustable chemistry, environment friendliness, and cost‐effectiveness. In this study, structurally stabilized aldehyde‐tuned hydrogen‐bonded (HOFs‐8) designed prepared contain arrayed electronegative sites sodium‐ion storage. Benefitting from the flexible hydrogen bond unique structural symmetry, HOFs‐8 can achieve efficient utilization of active fast transport sodium ions electrons. The electrode exhibits an impressive lifespan 5000 cycles at 3.66 A g −1 (20 C). situ Fourier Transform infrared spectroscopy (in FT‐IR) ex X‐ray Photoelectron Spectroscopy (ex XPS) analyses performed illustrate mechanism involving C═O. Additionally, bonds in HOFs materials with symmetries investigated elucidate bonding improving electrochemical properties. Density functional theory (DFT) simulations verified that has excellent Na + diffusion kinetics, enabling it demonstrate outstanding rate capability. This work offers insight into design new electrodes improved HOFs, which expected have tremendous systems.

Language: Английский

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Organizing Photosensitive and Photothermal Single‐Sites Uniformly in a Trimetallic Metal‐Organic Framework for Efficient Photocatalytic Hydrogen Evolution

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(26)

Published: April 4, 2024

Abstract Effective combination of the photosensitivity and photothermal property in photocatalyst is vital to achieve maximum light utilization for superior photocatalytic efficiency. Herein, this work successfully organizes photosensitive Cd‐NS single‐sites Ni‐NS uniformly at a molecular level within tailored trimetallic metal‐organic framework. The optimized Ho 6 ‐Cd 0.76 Ni 0.24 ‐NS exhibits hydrogen evolution rate 40.06 mmol g −1 h under visible‐light irradiation an apparent quantum efficiency 29.37% 420 nm without using cocatalysts or photosensitizers. A systematical mechanism study reveals that organized have synergistic effect, which form ultrashort pathways efficient transport photoinduced electrons, suppress recombination photogenerated charge carriers, hence promote activity. This provides promising approach organizing dual‐functional high‐performance

Language: Английский

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Induced Absolute Configuration of Achiral Tetradentate Ligands in Metal–Organic Frameworks for Circularly Polarized Luminescence

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: 42(11), P. 1260 - 1266

Published: Feb. 9, 2024

Comprehensive Summary The crystallization of chiral molecules is great significance to understand the origin and evolution hierarchical chirality reveal relationships between structural circularly polarized luminescence (CPL) activity. Here, we report two pairs metal–organic frameworks (MOFs) (DCF‐17/LCF‐17, DCF‐18/LCF‐18) by utilizing tetradentate ligands tetra(3‐imidazoylphenyl)ethylene (TIPE) 4,4'‐[4',5'‐bis[4‐(4‐pyridinyl)phenyl][1,1':2',1”‐terphenyl]‐4,4”‐diyl]bis[pyridine] (TPPP) as linkers. It can be observed that spontaneous resolution achiral converted into induced resolution, form absolute configuration using enantiopure camphoric acid (cam) reagent (CIR). As a result, racemate MOFs driven generate homochiral crystallization. Another [Cd(D‐cam)(TPPP) 0.5 ] (AF‐1, AF = framework) [Cd(L‐cam)(TPPP) (AF‐2) were prepared. position disorder D / L ‐cam skeleton causes generation nonchiralization, further leading disappearance symmetry breaking TPPP. For perspective structure, this first which reveals transfer nonchiralization agents ligands. Besides, DCF‐17 LCF‐17 show CPL with dissymmetry factor ( g lum ) –1.0 × 10 ‐2 +9.2 –3 , respectively. This work provides useful evidences construction CPL‐active crystalline materials.

Language: Английский

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Nano‐Confined Electrolyte for Sustainable Sodium‐Ion Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(23)

Published: Feb. 15, 2024

Abstract Sodium‐ion batteries (SIBs) are considered as a promising candidate for large‐scale electrochemical energy storage devices due to their low cost, abundant upstream resources, and compatible manufacturing processes with lithium‐ion batteries. However, the highly active free solvent molecules in liquid electrolyte trigger continuous interfacial side reactions between electrodes electrolyte, which degrades cycling performance of SIBs. Herein, Cu‐based metal‐organic framework (MOF) uniform nanoporous channel 1.1 nm is exploited confine electrolyte. Benefiting from highly‐aggregated solvation configuration, MOF‐confined possesses superior chemical/electrochemical thermal stability, guarantees its interface compatibility flame retardancy. As result, nano‐confined Na 3 V 2 (PO 4 ) cathode show an ultra‐long lifetime 3000 cycles 93% capacity retention decent high‐temperature (600 90% retention). This work presents viable method fabricating sustainable SIBs also provides guidance solving electrolytes systems.

Language: Английский

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In situ catalytic polymerization of LiNO3-containing PDOL electrolytes for high-energy quasi-solid-state lithium metal batteries

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149757 - 149757

Published: Feb. 16, 2024

Language: Английский

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Porous Organic Framework Materials (MOF, COF, and HOF) as the Multifunctional Separator for Rechargeable Lithium Metal Batteries

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 10, 2024

Abstract The s eparator is an important component in batteries, with the primary function of separating positive and negative electrodes allowing free passage ions. Porous organic framework materials have a stable connection structure, large specific surface area, ordered pores, which are natural places to store electrolytes. And these functions can be designed according needs researchers. performance porous framework‐based separators used rechargeable lithium metal batteries much better than that polyethylene/propylene separators. In this paper, three most classic (MOF, COF, HOF) analyzed summarized. applications MOF, HOF lithium‐sulfur anode, solid electrolytes reviewed. Meanwhile, research progress different fields discussed based on time. Finally, conclusion, problems encountered by as well their future priorities presented. This review will provide theoretical guidance for design further stimulate researchers conduct materials.

Language: Английский

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Development of the design and synthesis of metal–organic frameworks (MOFs) – from large scale attempts, functional oriented modifications, to artificial intelligence (AI) predictions

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 25, 2024

The design and synthesis of MOFs have evolved from traditional large-scale approaches to function-oriented modifications, recently AI predictions, which save time, reduce costs, enhance the efficiency achieving target functions.

Language: Английский

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Indirect Construction of Chiral Metal–Organic Frameworks for Enantioselective Luminescence Sensing

Accounts of Chemical Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

ConspectusChiral metal-organic frameworks (MOFs) are promising candidates as luminescent sensing materials for chiral species, which essential components in modern industries, pharmaceuticals, and biological processes. The discrimination of enantiomers with highly similar physical chemical properties is crucial because they often present concurrently the same system but may feature distinct effects on living matters. While rapid precise capabilities MOFs outshine traditional detection methods species daily life, production, natural environment, it requires well-matched electronic structures between species. Yet, conventional strategies to construct immensely challenging due crystallization difficulties based low-symmetric building blocks.Recent advancements MOF chemistry have led novel pathways synthesizing enantioselective sensing. Compared direct synthesis using optically pure ligands, usually complex costly, indirect has garnered significant attention reduced costs, simplified synthesis, enhanced material stability, broad application scope. In past few years, our group developed guest ion exchange, coordination modification, defect engineering indirectly MOFs. exchange cost-effective introducing ions into pores can be applied only charged frameworks. addition, also faces limitations availability tendency toward chirality loss during process. Besides, compared modification maintain stability stronger bonds. Still, accessible open metal sites that bind disordered dangling molecules, complicating structural determination. Therefore, specific such linker installation dual-end been afford well-defined crystal structures. all aforementioned decrease MOFs' pore sizes a certain degree, we further approach enlarge size introduce center simultaneously. Such competitive strategy facile low-cost expanded many well-known stable MOFs.In this Account, delve intricate evolution constructing tailored applications. We provide detailed analysis progression innovation within field, tracing development MOF-based luminescence sensors. By systematically reviewing various synthetic approaches, work highlights their respective strengths limitations. Beyond state art, Account offers forward-looking insights aiming inspire design next-generation These advanced hold promise versatile impactful applications across beyond.

Language: Английский

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Hydrogen-bonded organic frameworks (HOFs): Multifunctional material on analytical monitoring

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 170, P. 117436 - 117436

Published: Nov. 17, 2023

Language: Английский

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A Review on Covalent Organic Frameworks as Artificial Interface Layers for Li and Zn Metal Anodes in Rechargeable Batteries

Advanced Science, Journal Year: 2023, Volume and Issue: 11(7)

Published: Dec. 8, 2023

Abstract Li and Zn metals are considered promising negative electrode materials for the next generation of rechargeable metal batteries because their non‐toxicity high theoretical capacity. However, uneven deposition ions (Li + , 2+ ) uncontrolled growth dendrites result in poor electrochemical stability, unsatisfactory cycle life, rapid capacity decay assembled with electrodes. Owing to unique internal directional channels abundant redox active sites covalent organic frameworks (COFs), they can be used promote uniform during stripping/electroplating through interface modification strategies, thereby inhibiting dendrite growth. COFs provide a new perspective addressing challenges faced by anodes ion batteries. This article discusses stability types COFs, summarizes some novel COF synthesis methods. Additionally, it reviews latest progress optimization methods using improve battery performance. Finally, main these areas discussed. review will inspire future research on

Language: Английский

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