Short hydrogen-bond network confined on COF surfaces enables ultrahigh proton conductivity
Tianjin University · Peking University · +5 more institutions
Abstract
Abstract The idea of spatial confinement has gained widespread interest in myriad applications. Especially, the confined short hydrogen-bond (SHB) network could afford an attractive opportunity to enable proton transfer in a nearly barrierless manner, but its practical implementation has been challenging. Herein, we report a SHB network confined on the surface of ionic covalent organic framework (COF) membranes decorated by densely and uniformly distributed hydrophilic ligands. Combined experimental and theoretical evidences have pointed to the confinement of water molecules allocated to each ligand, achieving the local enrichment of hydronium ions and the concomitant formation of SHBs in water-hydronium…
Citation impact
- FWCI
- 19.76
- Percentile
- 100%
- References
- 65
Authors
17Topics & keywords
- Hydronium
- Proton
- Hydrogen bond
- Covalent bond
- Conductivity
- Ionic bonding
- Molecule
- Covalent organic framework
- Clean water and sanitation