Cationic Covalent Organic Frameworks: A Simple Platform of Anionic Exchange for Porosity Tuning and Proton Conduction
Changchun Institute of Optics, Fine Mechanics and Physics · Chinese Academy of Sciences · +1 more institution
Abstract
Mimicking proton conduction mechanism of Nafion to construct novel proton-conducting materials with low cost and high proton conductivity is of wide interest. Herein, we have designed and synthesized a cationic covalent organic framework with high thermal and chemical stability by combining a cationic monomer, ethidium bromide (EB) (3,8-diamino-5-ethyl-6-phenylphenanthridinium bromide), with 1,3,5-triformylphloroglucinol (TFP) in Schiff base reactions. This is the first time that the stable cationic crystalline frameworks allowed for the fabrication of a series of charged COFs (EB-COF:X, X = F, Cl, Br, I) through ion exchange processes. Exchange of the extra framework ions can finely modulate the COFs'…
Citation impact
- FWCI
- 37.54
- Percentile
- 100%
- References
- 54
Authors
8- HMHeping MaCorresponding
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
- BLBailing Liu
Northeast Normal University
- BLBin Li
Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and Physics
- LZLiming Zhang
Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and Physics
- YLYangguang Li
Northeast Normal University
Topics & keywords
- Chemistry
- Cationic polymerization
- Porosity
- Simple (philosophy)
- Proton
- Covalent bond
- Covalent organic framework
- Thermal conduction