2024年6月5日 · We observe liquid–liquid phase separation, pointing to the existence of structured solvents in the form of surfactant-free (micro)emulsions in conventional COF synthesis. Our findings show that...

3 天之前 · Tp-Py-COF was synthesised through a Schiff base reaction between 1,3,5-triformylphloroglucinol (Tp) and 1,3,6,8-tetrakis(4-aminophenyl) ... SEM image (e), and TEM image (f). Source data are ...

2022年4月6日 · Here we present a reconstruction strategy for COF synthesis that uses a reversible and removable covalent tether to pre-organize monomers before an irreversible polymerization.

2024年5月9日 · 2D covalent organic frameworks (COFs) are highly porous crystalline materials with promising applications in organic electronics. Current methods involve either on-surface synthesis (solid surface) or interfacial synthesis (liquid/liquid, liquid/gas interface) to create thin films for these applications, each with its drawbacks.

2 天之前 · Download: Download full-size image; Fig. 2. (a) FT-IR spectra of COF-F, tetrafluoroterephthalaldehyde and TAPP, (b) Experimental (red hollow circle), Pawley refined (blue line), and simulated (red line) PXRD patterns of COF-F, inset was the top view of the structural model by AA stacking mode, (c) SEM image for COF-F, (d) 77 K nitrogen sorption ...

2025年3月17日 · This unique structure endows the COF sponge with several remarkable properties, ultralow density (2.2 mg cm −3, the lowest density reported for COF macroscopic objects to date), high surface area (1655 m 2 g −1), and excellent mechanical stability (demonstrated by only a 7.9% decrease in height and a 7.1% decrease in stress after 300 000 ...

2024年7月16日 · Prediction of experimental specific surface area of COFs based on structural images. The proposed COFNet model integrates deep learning algorithms with attention mechanism. The COFNet model innovatively accepts COF structural images and derived statistical features as hybrid inputs.

6 天之前 · Download: Download high-res image (248KB) Download: Download full-size image; Fig. 1. Simulation model of FDM-71 material. (a, b) Front and side views of unit cell; (c, d) Front and side views of supercell cell. ... While this study provides valuable insights into the atomic-level design of MOF-COF heterostructures, several avenues for future ...

The new porous material for capturing carbon dioxide, called a covalent organic framework (COF), has hexagonal channels decorated with polyamines that efficiently bind CO 2 molecules (blue and ...

2023年8月15日 · Here, we synthesize two 3D crystalline COF films. The frameworks, the ionic B-based and neutral C-based COFs, have similar unit cell parameters, which enables their epitaxial stacking in a layered 3D COF film. The film growth was monitored in real time using a quartz crystal microbalance, showing linear growth with respect to reaction time.