2020年3月18日 · Using this approach, we synthesise a single-crystalline 1D metallo-COF (mCOF-Ag) with micrometre-sized particles, allowing the rigorous characterisation of the crystal structure via...

2024年10月30日 · Inspired by the efficient electrocatalysis performance of molecular phthalocyanine compounds for NO 3 RR, two unprecedented phthalocyanine-based 1D COFs with imide-linkage, namely NiPc-CZDM-COF and NiPc-CZDL-COF, were designed and synthesized by the imidization reaction of tetra-connected 2,3,9,10,16,17,23,24-octacarboxyphthalocyaninato nickel ...

2022年8月22日 · One-dimensional (1D) covalent polymers that are packed into a framework structure can be viewed as a 1D covalent org. framework (COF), but making a single crystal of this has been elusive. Herein, by combining labile metal coordination and dynamic covalent chem., we discover a strategy to synthesize single-crystal metallo-COFs under ...

2024年2月1日 · The topological diversity of covalent organic frameworks (COFs) enables considerable space for exploring their structure-performance relationships. In this study, we report a sequence of novel 1D COFs (EO, ES, and ESe-COF) with typical 4-c sql topology that can be interconnected with VIA group elements (O, S, and Se) via a modular design strategy.

共价有机框架（COFs）是一类新兴的多孔材料，因其多样化的结构和良好的性能在诸多领域得到了广*的研究和应用。 根据其纳米形态，COFs可以分为零维（0-D）、一维（1-D）、二维（2-D）和三维（3-D）四种类型。 以下是对这些不同形态COFs的详细介绍： 尺寸：零维COFs通常以纳米颗粒或量子点的形式存在，尺寸在纳米级别。 结构：具备高度对称的结构，常见的形态包括纳米球、纳米点等。 高比表面积：适用于催化、传感和药物传输等应用。 量子效应：在光电器 …

通过精确的几何匹配和杂原子掺杂，成功合成了一系列具有高结晶性、高比表面积和微孔结构的准一维共价有机框架（Q1DCOFs），在光催化水分解制氢中展现出了卓越的性能。 CHEMSOON-专业合成准一维COF材料.

2024年5月22日 · Herein we report exterior functionalization of a one-dimensional (1D) COF by introducing terpyridine units on its edges to anchor Pt(II) cations. The as-obtained 1D COF (Pt-Tpy-COF) exhibits high photocatalytic activity for hydrogen evolution from water, with a hydrogen evolution rate up to 7.8 mmol g −1 h −1 .

可以将填充到框架结构中的一维（1D）共价聚合物视为一维共价有机框架（COF），但是很难将其制成单晶。 在这里，通过结合不稳定的金属配位和动态共价化学，我们发现了一种在溶剂热条件下合成单晶金属-COFs的策略。 使用单晶电子衍射技术可以严格解决单晶结构。 非中心对称金属COF允许二次谐波的产生。 由于沿聚合物链存在句法侧基胺基， Although polymers have been studied for well over a century, there are few examples of covalently linked polymer crystals …

2020年12月24日 · Here, we develop a new COF made up of 1,3,6,8-tetrakis(p-formylphenyl)pyrene (TFPPy) and 4,4′-diaminobenzophenone (DABP) that exhibits a rare one-dimensional (1D) structure. The resulting frameworks possess good crystallinity, comparatively high Brunauer–Emmett–Teller (BET) surface area (426 m 2 …

研究团队通过调控一维（1d）cofs的边缘位点来催化orr，设计了具有独特边缘基团（如羰基、二氨基吡嗪、苯并咪唑和苯甲醛咪唑单元）的cofs。 ... 其中，cof-ba的Δg最低为1.649 ev，表明苯并咪唑环上的碳原子具有更高的催化活性，这归因于其促进了ooh*的形成。 ...