2025年2月24日 · We developed a robust three-dimensional (3D) covalent organic framework (COF), fully conjugated in both the planar (x, y) and interlayer (z) directions, using a one-pot sulfurization process. We converted the two-dimensional (2D) imine-linked COF (Py-BDA-COF) to the 3D thiazole-linked COF (3D-Py-BDA-S-COF).

2021年12月14日 · Covalent organic frameworks (COFs) are crystalline porous organic structures with two- or three-dimensional (2D or 3D) features and composed of building blocks being connected via covalent bonds.

2024年9月1日 · Here, we present a mixed-dimensional strategy of growing three-dimensional (3D) COFs on 2D COFs to build bilayered membranes for efficient organic solvent nanofiltration (OSN). The pores of 3D COFs interlace with those of 2D counterparts, resulting in a subnanoporous composite.

2025年2月20日 · Here we describe a straightforward method for preparing imine-linked 2D COF films with a near-perfect face-on orientation by leveraging kinetically trapped amorphous 3D covalent adaptable...

2024年8月10日 · 2D and 3D imide-bonded COFs composed of nickel-phthalocyanine subunits have been prepared and used in carbon dioxide reduction reaction electrocatalysis, showing the high CO 2 -to-CO conversion Faradaic efficiency.

2024年5月9日 · Here, we report the first example of the chemical reconstruction of a 2D COF to a 3D COF with a complete lattice rearrangement facilitated by base-triggered boron hybridization. This chemical reconstruction involves the conversion of trigonal boronate ester linkages to tetrahedral anionic spiroborate linkages.

共价有机框架 （COF） 是一种新型的晶体多孔材料，可以通过隐性化学原理，通过共价键将分子构建基块精确集成到二维 （2D） 分层结构或三维 （3D） 扩展网络中。

近日， 加拿大麦吉尔大学 Dmitrii Perepichka 教授研究组 报道了 能够实现2D 聚芳乙烯 COF有序转化为3D 环丁烷 COF 晶体-晶体可逆转换 的方法， 这是第一个报道有序2D到3D的COF-COF转变。

导语 共价有机框架（COFs）是新一类的有机晶态聚合物，具有高度有序的结构和永久的孔隙度。依赖于单体不同的拓扑结构，COF 可以分为二维（2D）COFs和三维 (3D) COFs。特别地，2D COFs因其具有扩展的平面内π共轭，拓扑有序柱状π阵列，高的结晶度，大的比表面积，和可调的孔隙，被视为构建功能性 ...

2023年3月1日 · Use of cobalt corrole-based COFs as efficient chemosensors for detecting trace amounts of CO. Synthesis, characterization, and gas adsorption properties of new 2D and 3D COF porous materials based on corrole macrocycles. Possible acute detection and poison prevention of CO thanks to cobalt corrole coordination.