石墨烯
超级电容器
材料科学
氧化物
兴奋剂
导电体
碳纤维
纳米技术
电极
氧化石墨烯纸
化学工程
电容
光电子学
复合材料
复合数
化学
冶金
工程类
物理化学
作者
Yongcai Qiu,Xinfeng Zhang,Shihe Yang
摘要
Thermal nitridation of reduced graphene oxide sheets yields highly conductive (∼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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