Micron, Journal Year: 2024, Volume and Issue: 179, P. 103595 - 103595
Published: Feb. 2, 2024
Language: Английский
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(12), P. 7829 - 7906
Published: June 3, 2024
Covalent network polymers, as materials composed of atoms interconnected by covalent bonds in a continuous network, are known for their thermal and chemical stability. Over the past two decades, these have undergone significant transformations, gaining properties such malleability, environmental responsiveness, recyclability, crystallinity, customizable porosity, enabled development integration dynamic chemistry (DCvC). In this review, we explore innovative realm polymers focusing on recent advances achieved through application DCvC. We start examining history fundamental principles DCvC, detailing its inception core concepts noting key role reversible bond formation. Then reprocessability DCvC is thoroughly discussed, starting from milestones that marked evolution progressing to current trends applications. The influence crystallinity then reviewed, covering diversity, synthesis techniques, functionalities. concluding section, address challenges faced field speculates potential future directions.
Language: Английский
Citations
69
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Jan. 23, 2024
Realization of stable and industrial-level H
Language: Английский
Citations
66
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(5), P. 2738 - 2760
Published: Jan. 1, 2024
This review provides a comprehensive overview of the fabrication strategies and applications hydrogen-bonded organic frameworks in membrane separation.
Language: Английский
Citations
62
Nature Chemistry, Journal Year: 2024, Volume and Issue: 16(8), P. 1373 - 1380
Published: May 3, 2024
Language: Английский
Citations
46
Accounts of Chemical Research, Journal Year: 2024, Volume and Issue: 57(8), P. 1214 - 1226
Published: March 29, 2024
ConspectusChemical reactions can be promoted at lower temperatures and pressures, thereby reducing the energy input, by introducing suitable catalysts. Despite its significance, quest for efficient stable catalysts remains a significant challenge. In this context, addressing efficiency of stands out as paramount concern. However, challenges posed vague structure limited tailorability traditional would make it highly desirable to fabricate optimized based on understanding structure–activity relationships. Covalent organic frameworks (COFs), subclass fully designed crystalline materials formed polymerization building blocks through covalent bonds have garnered widespread attention in catalysis. The precise customizable structures COFs, coupled with attributes such high surface area facile functional modification, COFs attractive molecular platforms catalytic applications. These inherent advantages position ideal catalysts, facilitating elucidation structure-performance relationships further improving Nevertheless, there is lack systematic emphasis summary structural regulation atomic/molecular level COF Consequently, growing need summarize research field provide deep insights into COF-based catalysis promote development.In Account, we will recent advances achieved placing an design enhanced Considering unique components present fundamental principles rational This Account starts presenting overview explaining why are promising Then, introduce principle Next, following three aspects specific strategies catalysts: (1) By designing different groups integrating metal species unit, activity and/or selectivity finely modulated. (2) Regulating linkage facilitates charge transfer modulates electronic sites, accordingly, intrinsic activity/selectivity improved. (3) means pore wall/space engineering, microenvironment surrounding sites modulated optimize performance. Finally, current future developments discussed detail. provides insight toward their performance, which inspiration other heterogeneous
Language: Английский
Citations
41
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(26)
Published: April 20, 2024
Inspired by dative boron-nitrogen (B←N) bonds proven to be the promising dynamic linkage for construction of crystalline covalent organic polymers/frameworks (COPs/COFs), we employed 1,4-bis(benzodioxaborole) benzene (BACT) and N,N'-Di(4-pyridyl)-1,4,5,8-naphthalenetetracarboxdiimide (DPNTCDI) as corresponding building blocks construct a functional COP (named CityU-25), which had been an anode in rechargeable lithium ion batteries. CityU-25 displayed excellent reversible storage capability 455 mAh/g after 170 cycles at 0.1 A/g, impressive one 673 720 0.5 A/g. These findings suggest that is standout candidate advanced battery technologies, highlighting potential application this type materials.
Language: Английский
Citations
28
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(15)
Published: Feb. 9, 2024
Developing high connectivity (>8) three-dimensional (3D) covalent organic frameworks (COFs) towards new topologies and functions remains a great challenge owing to the difficulty in getting building blocks. This however represents most important step promoting diversity of COFs due still limited dynamic bonds available for constructing at this stage. Herein, highly connected phthalocyanine-based (Pc-based) 3D MPc-THHI-COFs (M=H
Language: Английский
Citations
27
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151628 - 151628
Published: April 25, 2024
Language: Английский
Citations
26
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(30)
Published: May 13, 2024
Abstract Three‐dimensional covalent organic frameworks (3D COFs), recognized for their tailorable structures and accessible active sites, offer a promising platform developing advanced photocatalysts. However, the difficulty in synthesis functionalization of 3D COFs hinders further development. In this study, we present series 3D‐ bcu ‐COFs with 8 connected porphyrin units linked by linear linkers through imine bonds as versatile photocatalyst design. The photoresponse was initially modulated functionalizing benzo‐thiadiazole or benzo‐selenadiazole groups. Furthermore, taking advantage well‐exposed sites ‐COFs, photocatalytic activity optimized stepwise protonation centers. dual protonated COF groups exhibited enhanced charge separation, leading to an increased H 2 O production under visible light. This enhancement demonstrates combined benefits linker on efficiency.
Language: Английский
Citations
26
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(29), P. 19643 - 19648
Published: July 11, 2024
We report 9 crystal structures of a two-dimensional (2D) covalent organic framework (COF), including the parent Py-1P, 5 derivatives formed by chemical reactions, and 3 dynamic states solvent exchange/loss. Structure details these porous crystals, stacking mode, interlayer distance, pore aperture, incline angle, before, during, after conversion processes in solution, were unveiled single-crystal X-ray diffraction with resolutions up to 0.85 Å. The structure evolution is triggered stepwise conformational transformation molecular building blocks 2D COF, while their long-range ordering remained unsacrificed.
Language: Английский
Citations
24