期刊
RSC ADVANCES
卷 8, 期 25, 页码 14032-14039出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra01019f
关键词
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资金
- National Natural Science Foundation of China [51222305, 51673123]
- Ministry of Science and Technology of the People's Republic of China [2013CB934700]
- Program for New Century Excellent Talents in University [NCET-12-0386]
A flexible free-standing nitrogen-doped graphene paper (N-GP) is fabricated via a facile hydrothermal approach with doping reaction occurring at the solid/gas interface of graphene oxide and ammonia vapor. Ammonia not only facilitates the doping of oxidized graphene paper efficiently with a nitrogen doping level of ca. 6.81%, but also promotes its reduction. The electrochemical properties of N-GP as an anode of lithium ion batteries (LIB) are evaluated and N-GP delivers almost doubled reversible discharge capacity compared to the undoped graphene paper (GP) as well as a good cyclic stability and rate performance. The proposed strategy to realize simultaneous reduction and nitrogen doping of graphene oxide via hydrothermal approach at the solid/gas interface offers a green and facile solution to modify graphene paper with desired electrochemical performances for LIB application.
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