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High performance supercapacitors based on highly conductive nitrogen-doped graphene sheets
被引:272
|作者:
Qiu, Yongcai
[1
]
Zhang, Xinfeng
[1
]
Yang, Shihe
[1
]
机构:
[1] Hong Kong Univ Sci & Technol, Nano Sci & Technol Program, Dept Chem, William Mong Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China
关键词:
ELECTROCHEMICAL CAPACITORS;
ACTIVATED CARBON;
ENERGY-STORAGE;
GRAPHITE OXIDE;
ULTRACAPACITORS;
REDUCTION;
BATTERIES;
ELECTRODE;
D O I:
10.1039/c1cp21148j
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Thermal nitridation of reduced graphene oxide sheets yields highly conductive (similar to 1000-3000 S m(-1)) N-doped graphene sheets, as a result of the restoration of the graphene network by the formation of C-N bonded groups and N-doping. Even without carbon additives, supercapacitors made of the N-doped graphene electrodes can deliver remarkable energy and power when operated at higher voltages, in the range of 0-4 V.
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页码:12554 / 12558
页数:5
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