Exploitation of two-dimensional conjugated covalent organic frameworks based on tetraphenylethylene with bicarbazole and pyrene units and applications in perovskite solar cells
[EN] COVALENT ORGANIC FRAMEWORKS AND APPLICATIONS AS PHOTOCATALYSTS<br/>[FR] STRUCTURES ORGANIQUES COVALENTES ET APPLICATIONS EN TANT QUE PHOTOCATALYSEURS
申请人:UNIV SOUTH FLORIDA
公开号:WO2021097324A1
公开(公告)日:2021-05-20
Described herein are covalent organic frameworks. The covalent organic frameworks have unique structural and physical properties, which lends them to be versatile in a number of different applications and uses. In one aspect, the covalent organic frameworks are composed of a plurality of fused aromatic groups and electron-deficient chromophores. The covalent organic frameworks are useful as photocatalysts in a number of different applications.
Designed Synthesis of Porphyrin-based Two-dimensional Covalent Organic Frameworks with Highly Ordered Structures
作者:Xiong Chen、Jia Gao、Donglin Jiang
DOI:10.1246/cl.150496
日期:2015.9.5
Porphyrins are representative functional π-systems; synthesizing their highly ordered structures is an established goal in chemistry. Here, we report the designed synthesis of a series of porphyrin-based covalent organic frameworks with highly ordered structures through polycondensation. The porphyrin-based frameworks exhibited high crystallinity, high porosity, and extended π-conjugation over the polyporphyrin sheets.
Synthesis of Stable Thiazole-Linked Covalent Organic Frameworks via a Multicomponent Reaction
作者:Kewei Wang、Zhifang Jia、Yang Bai、Xue Wang、Sophie E. Hodgkiss、Linjiang Chen、Samantha Y. Chong、Xiaoyan Wang、Haofan Yang、Yongjie Xu、Feng Feng、John W. Ward、Andrew I. Cooper
DOI:10.1021/jacs.0c03418
日期:2020.6.24
The development of robust synthetic routes to stablecovalentorganicframeworks (COFs) is important to broaden the range of applications for these materials. We report here a simple and efficient three-component assembly reaction between readily available aldehydes, amines and elemental sulfur via a C-H functionalization and oxidative annulation under transition-metal-free conditions. Five thiazole-linked
Perylene-Based Covalent Organic Frameworks for Acid Vapor Sensing
作者:Laura Ascherl、Emrys W. Evans、Jeffrey Gorman、Sarah Orsborne、Derya Bessinger、Thomas Bein、Richard H. Friend、Florian Auras
DOI:10.1021/jacs.9b08079
日期:2019.10.2
Traditionally, the properties and functions of covalentorganicframeworks (COFs) are defined by their constituting building blocks, while the chemical bonds that connect the individual subunits have not attracted much attention as functional components of the final material. We have developed a new series of dual-pore perylene-based COFs and demonstrated that their imine bonds can be protonated reversibly, causing
Ultrastable tetraphenyl-<i>p</i>-phenylenediamine-based covalent organic frameworks as platforms for high-performance electrochemical supercapacitors
作者:Ahmed F. M. EL-Mahdy、Mohamed Gamal Mohamed、Tharwat Hassan Mansoure、Hsiao-Hua Yu、Tao Chen、Shiao-Wei Kuo
DOI:10.1039/c9cc08107k
日期:——
In this study we synthesized two tetraphenyl-p-phenylenediamine-based covalent organic frameworks (TPPDA-TPPyr and TPPDA-TPTPE COFs) for potential use in high-performance electrochemical supercapacitors.