High performance supercapacitors based on highly conductive nitrogen-doped graphene sheets

被引：274

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

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2011年 / 13卷 / 27期

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.

引用

页码：12554 / 12558

页数：5

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