Results 1 to 10 of about 16,201 (154)

Solvatochromic covalent organic frameworks [PDF]

Nature Communications, 2018
Covalent organic frameworks (COFs) find increasing application as sensor material, but fast switching solvatochromism was not realized. Here the authors demonstrate that combination of electron-rich and -deficient building blocks leads to COFs which fast
Laura Ascherl, Emrys W. Evans, Matthias Hennemann, Daniele Di Nuzzo, Alexander G. Hufnagel, Michael Beetz, Richard H. Friend, Timothy Clark, Thomas Bein, Florian Auras   +9 more
doaj   +6 more sources

Colloidal Covalent Organic Frameworks

ACS Central Science, 2017
Covalent organic frameworks (COFs) are two- or three-dimensional (2D or 3D) polymer networks with designed topology and chemical functionality, permanent porosity, and high surface areas. These features are potentially useful for a broad range of applications, including catalysis, optoelectronics, and energy storage devices.
Brian J. Smith, Lucas R. Parent, Anna C. Overholts, Peter A. Beaucage, Ryan P. Bisbey, Anton D. Chavez, Nicky Hwang, Chiwoo Park, Austin M. Evans, Nathan C. Gianneschi, William R. Dichtel   +10 more
doaj   +4 more sources

Polyphosphonate covalent organic frameworks

Nature Communications
Herein, we report polyphosphonate covalent organic frameworks (COFs) constructed via P-O-P linkages. The materials are synthesized via a single-step condensation reaction of the charge-assisted hydrogen-bonded organic framework, which is constructed from
Ke Xu, Robert Oestreich, Takin Haj Hassani Sohi, Mailis Lounasvuori, Jean G. A. Ruthes, Yunus Zorlu, Julia Michalski, Philipp Seiffert, Till Strothmann, Patrik Tholen, A. Ozgur Yazaydin, Markus Suta, Volker Presser, Tristan Petit, Christoph Janiak, Jens Beckmann, Jörn Schmedt auf der Günne, Gündoğ Yücesan   +17 more
doaj   +4 more sources

Chiral induction in covalent organic frameworks [PDF]

Nature Communications, 2018
Controlling chirality and function in metal organic frameworks has been an achievement, but very difficult to carry out in covalent organic frameworks. Here the authors show chiral covalent organic frameworks that are crystallized from achiral precursors
Xing Han, Jie Zhang, Jinjing Huang, Xiaowei Wu, Daqiang Yuan, Yan Liu, Yong Cui   +6 more
doaj   +3 more sources

Multiple-component covalent organic frameworks

Nature Communications, 2016
Covalent organic frameworks are crystalline porous polymers integrating molecular building blocks into periodic structures. Here, the authors report a general multiple-component condensation strategy that enables the use of one knot and two or three ...
Ning Huang, Lipeng Zhai, Damien E. Coupry, Matthew A. Addicoat, Keiko Okushita, Katsuyuki Nishimura, Thomas Heine, Donglin Jiang   +7 more
doaj   +3 more sources

Exploration of covalent-organic frameworks and metal-organic frameworks for drug delivery applications [PDF]

Frontiers in Chemistry
Covalent-organic frameworks (COFs) and metal-organic frameworks (MOFs) have been a promising carrier for drug delivery because of excellent biocompatibility, developed porous structure and sufficient interactions of host-guest molecules.
Yuhao Sheng, Kunfang Ma
doaj   +2 more sources

Quasi-one-dimensional enaminone-linked covalent organic frameworks for efficient CO₂ photoreduction [PDF]

Nature Communications
Quasi-one-dimensional covalent organic frameworks have emerged as promising platforms for photochemical energy conversion due to their low density of basal sites, abundant edge sites, and dual-chain-like structure.
Junxian Bai, Yuxin Hu, Fangyuan Si, Yan Li, Guijie Liang, Tingting Hou, Yingwei Li   +6 more
doaj   +2 more sources

Reconstructed covalent organic frameworks [PDF]

Nature, 2022
AbstractCovalent organic frameworks (COFs) are distinguished from other organic polymers by their crystallinity1–3, but it remains challenging to obtain robust, highly crystalline COFs because the framework-forming reactions are poorly reversible4,5.
Weiwei Zhang, Linjiang Chen, Sheng Dai, Chengxi Zhao, Cheng Ma, Lei Wei, Minghui Zhu, Samantha Y. Chong, Haofan Yang, Lunjie Liu, Yang Bai, Miaojie Yu, Yongjie Xu, Xiao-Wei Zhu, Qiang Zhu, Shuhao An, Reiner Sebastian Sprick, Marc A. Little, Xiaofeng Wu, Shan Jiang, Yongzhen Wu, Yue-Biao Zhang, He Tian, Wei-Hong Zhu, Andrew I. Cooper   +24 more
openaire   +4 more sources

Post-synthetic modification of covalent organic frameworks for CO2 electroreduction

Nature Communications, 2023
To achieve high-efficiency catalysts for CO2 reduction reaction, various catalytic metal centres and linker molecules have been assembled into covalent organic frameworks.
Minghao Liu, Shuai Yang, Xiubei Yang, Cheng-Xing Cui, Guojuan Liu, Xuewen Li, Jun He, George Zheng Chen, Qing Xu, Gaofeng Zeng   +9 more
doaj   +1 more source

Hydrogen-bonding and π-π interaction promoted solution-processable covalent organic frameworks

Nature Communications, 2023
Covalent organic frameworks show great potential in gas adsorption/separation, biomedicine, device, sensing, and printing arenas. However, covalent organic frameworks are generally not dispersible in common solvents resulting in the poor processability ...
Lei Zhang, Qiu-Hong Zhu, Yue-Ru Zhou, Shuang-Long Wang, Jie Fu, Jia-Ying Liu, Guo-Hao Zhang, Lijian Ma, Guohua Tao, Guo-Hong Tao, Ling He   +10 more
doaj   +1 more source