
Working Together in Times of Disaster: 2020 to Present - cof.org
This session will showcase lessons learned in disaster response from the 2020 global pandemic to the 2024 hurricanes that devastated Florida’s Gulf Coast. A collective effort from every department rooted in trust, clarity, and alignment is essential in deploying life sustaining support, as quickly as possible. Thoughtful and intentional …
Covalent Organic Frameworks: Design, Synthesis, and Functions
2020年1月22日 · Covalent organic frameworks (COFs) are a class of crystalline porous organic polymers with permanent porosity and highly ordered structures. Unlike other polymers, a significant feature of COFs is that they are structurally predesignable, synthetically controllable, and functionally manageable.
3D Covalent Organic Frameworks Selectively Crystallized through ...
2020年11月13日 · We present a strategy whereby selective formation of imine covalent organic frameworks (COFs) based on linking of triangles and squares into the fjh topology was achieved by the conformational design of the building units. 1,3,5-Trimethyl-2,4,6-tris (4-formylphenyl)benzene (TTFB, triangle) and 1,1,2,2-tetrakis (4-aminophenyl)ethene (ETTA ...
Solving the COF trilemma: towards crystalline, stable and functional ...
Covalent organic frameworks (COFs) have entered the stage as a new generation of porous polymers which stand out by virtue of their crystallinity, diverse framework topologies and accessible pore systems. An important – but still underdeveloped – feature of COFs is their potentially superior stability in comparison to other porous materials.
Ultralight covalent organic framework/graphene aerogels with ...
2020年9月18日 · Macroscopic architectures of covalent organic frameworks (COF) allow to fully exploit their chemical functionality and porosity but achieving three-dimensional hierarchical porous COF ...
共价有机框架COF (covalent-organic framework)有哪些热门材料及 …
COFs材料是目前公开报道中最好的气体吸附材料之一,不但可以改善MOFs在室温和中等压力条件下吸附能力减弱的窘况,而且在储氢性能的研究上也取得了一些重要成果。 但是到目前为止,金属掺杂等复合改性研究还不具有普遍性,随着越来越多的国内外学者的关注,COFs作为一种很有研究价值和发展前途的储氢材料仍需要进一步深入研究。 共价有机框架(COFs)由共价键连接的多齿有机结构形成,是成分、结构、功能可调的新兴多孔晶体材料。 一般COFs通过硼酸、硼、 …
Recent progress in covalent organic frameworks as light …
2021年6月1日 · In 2020, Wang et al. [115] constructed a new fluorescent COF via condensing TFPA with BZ for drug loading and release (Fig. 25d). The COF exhibits deep blue emission in the polar solvents, which is distinguishable to the green fluorescence of doxorubicin (DOX), the drug used in this study.
Angewandte Chemie International Edition - Wiley Online Library
2020年4月9日 · From that perspective, the development of metal–covalent organic frameworks (MCOFs) may address these shortcomings by incorporating active metal species atop highly stable COF backbones. This Minireview highlights examples of MCOFs that tackle important issues from their design, synthesis, characterization to cutting-edge applications.
Covalent organic frameworks: A green approach to environmental ...
Covalent organic frameworks represent a unique class of crystalline and porous materials constructed from organic building blocks linked by strong covalent bonds [1]. First synthesized in 2005 by Coté and his coresearchers [2], COFs have garnered significant interest owing to their ordered structures, excellent porous morphology, and …
Covalent organic frameworks for separation applications
COFs have been proposed as ideal materials for applications in the energy-intensive field of molecular separation due to their notable intrinsic features such as low density, exceptional stability, high surface area, and readily adjustable pore size and chemical environment.