We describe the in situ synthesis of the covalent organic framework-5 (COF-5) on the surfaces of carbon nanotubes (CNTs) and graphenes having homogeneous CNT@COF-5 core-shell structures using a...

2018年7月6日 · Here, we developed a general procedure to grow large single crystals of three-dimensional imine-based COFs (COF-300, hydrated form of COF-300, COF-303, LZU-79, and LZU-111). The high quality of the crystals allowed collection of single-crystal x-ray diffraction data of up to 0.83-angstrom resolution, leading to unambiguous solution and precise ...

In this review, the energy storage mechanism and unique superiority of COFs and COF composites as electrodes, separators and electrolytes for rechargeable batteries are discussed in detail....

2024年10月1日 · Molecular diffusion and surface dynamics within two covalent organic frameworks (COFs) have been investigated using nuclear magnetic resonance (NMR) pulsed-field gradient (PFG) and relaxation.

4 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 ...

2024年3月21日 · Liquid crystalline polymers can thread through covalent organic frameworks (COFs) and create nanofibril bridges that dissipate energy during fracture. Neumann et al. show that a molecularly woven COF stabilized by amide linkages was interpenetrated by polyimide, which was also chemically similar to this COF.

2019年12月30日 · Recently, Lai and co-workers synthesized well-defined porous COF, DFP-DHP COF, through a two-step reaction: the first step is the Schiff-base condensation reaction of 1,3,5-triformylpholoroglucinol (TFP) and 9,9-dihexylfluorene-2,7-diamine (DHF), and the next step is an irreversible tautomerism reaction to form a β-ketoenamine structure to ...

Therefore, the incorporation of the MOF@COF provides the driving force for the extraction and transport of photogenerated charges to inhibit defect-induced nonradiative recombination, which ...

2025年3月22日 · As depicted in Fig. 6 c, the SEM image of CuFe-NHPC/CNFs after the long-term stability test confirms that the nanostructure does not show obvious changes and is basically identical to the original morphology, which might be owing to the protective effect of the COF-derived carbon layer [27].

2020年1月30日 · Herein, we report a simple and scalable way to grow large-area, pliable, free-standing COF membranes via a one-step route at organic–organic interface. The pore sizes of the membranes can be...