Two-dimensional covalent organic frameworks (COF-LZU1) based PDMS mixed matrix membranes (MMMs) were fabricated and employed for pervaporation of 3.6 wt% n-butanol solution. The effects of COF-LZU1 loading on membrane properties (hydrophobicity, swelling degree and partition coefficient) and PV ...
Covalent organic frameworks (COFs) can exhibit high specific surface area and catalytic activity, but traditional solution-based synthesis methods often lead to insoluble and infusible powders or fragile films on solution surface. Herein we report large-area –C=N– linked two-dimensional (2D) COF ...
Resolving single-crystal structures of two-dimensional covalent organic frameworks (2D COFs) is a great challenge, hindered in part by limited strategies for growing high-quality crystals. A better understanding of the growth mechanism facilitates development of methods to grow high-quality 2D COF sing...
We introduced bipyridine ligands into a series of two-dimensional (2D) covalent organic frameworks (COFs) using 2,2′-bipyridine-5,5′-dicarbaldehyde (2,2′-BPyDCA) as a component in the mixed building blocks. The framework of the COFs was formed by the linkage of imine groups. The ligand...
Two-Dimensional Covalent Organic Frameworks for Carbon Dioxide Capture through Channel-Wall Functionalization Ordered open channels found in two-dimensional covalent organic frameworks (2D COFs) could enable them to adsorb carbon dioxide. However, the frameworks' d... N Huang,X Chen,R Krishna,... ...
Most two-dimensional (2D) covalent organic frameworks (COFs) are non-fluorescent in the solid state even when they are constructed from emissive building blocks. The fluorescence quenching is usually attributed to non-irradiative rotation-related or π-π stacking-caused thermal energy dissipation proc...
The synthesis of fully conjugated sp2 -carbon covalent organic frameworks (COF) is extremely challenging given the difficulty of the formation of very stable carbon-carbon double bonds (-C=C-). Here, we report the successful preparation of a 2D COF (TP-COF) based on triazine as central ...
Covalent organic frameworks(COFs)have shown promise in the field of photocatalysts for hydrogen evolution.Many studies have been carried out using various ... S Altinisik,G Yanalak,IH Patir - 《Acs Applied Materials & Interfaces》 被引量: 0发表: 2023年 A Crystalline Partially Fluorinated Triazine...
In this study, using density functional theory (DFT)-based computations, we propose a two dimensional (2D) covalent organic framework (COF) with triquinoxalinylene (TQ) and benzoquinone (BQ) units in its skeleton, namely, TQBQCOF, as a promising sulfur host material for high-performance Li-...
Chemical structures of the C = C bond linked covalent organic frameworks.aRepresentative two examples of 2D covalent organic frameworks with carbon–carbon double bond (C = C) linkages through Knoevenagel condensation at methylene carbon atoms by using inorganic base catalysts.bMetal-free app...