Journal
NATURE MATERIALS
Volume 15, Issue 7, Pages 722-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/NMAT4611
Keywords
-
Categories
Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT) [24245030]
Ask authors/readers for more resources
Progress over the past decades in proton-conducting materials has generated a variety of polyelectrolytes(1-5) and microporous polymers(6-10). However, most studies are still based on a preconception that large pores eventually cause simply flow of proton carriers rather than effcient conduction of proton ions, which precludes the exploration of large-pore polymers for proton transport. Here, we demonstrate proton conduction across mesoporous channels in a crystalline covalent organic framework. The frameworks are designed to constitute hexagonally aligned, dense, mesoporous channels that allow for loading of N-heterocyclic proton carriers. The frameworks achieve proton conductivities that are 2-4 orders of magnitude higher than those of microporous and non-porous polymers. Temperature-dependent and isotopic experiments revealed that the proton transport in these channels is controlled by a low-energy-barrier hopping mechanism. Our results reveal a platform based on porous covalent organic frameworks for proton conduction.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available