Journal
CHEMISTRYSELECT
Volume 2, Issue 24, Pages 7160-7168Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201700656
Keywords
ammonia activation; lithium-sulfur batteries; mesoporous carbon; nitrogen-doping
Categories
Funding
- National Nature Science Foundation of China [21401145, 11474226, 51676143]
- Fundamental Research Funds for Central Universities [WUT: 2017-IB-003]
- Student Innovation Training Program [20161049720002, 20161049720003]
Ask authors/readers for more resources
Developed porosity and high-level heteroatom-doping are necessary to acquire the advanced carbon materials as sulfur hosts for lithium-sulfur batteries with high sulfur loading. We herein demonstrated that hierarchical ordered micro/mesoporous carbons with controllable porosity and nitrogen functionality could be prepared via two scalable steps which are based on aqueous self-assembly and ammonia activation processes. The effects of porosity and nitrogen doping upon the electrochemical performances of the carbon/sulfur hybrids as the cathodes in lithium-sulfur batteries were investigated. It demonstrated that the carbon materials with balanced porosity and nitrogen-doping level could effectively increase the conductivity of sulfur and alleviate the shuttle effect and exhibit high specific capacity, good rate performance, and superior cycling stability.
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