阳极
材料科学
碳纤维
石墨烯
氮气
化学工程
兴奋剂
钠
离子
复合数
纳米技术
复合材料
电极
化学
有机化学
光电子学
冶金
物理化学
工程类
作者
Fuhua Yang,Zhian Zhang,Ke Du,Xingxing Zhao,Wei Chen,Yanqing Lai,Jie Li
出处
期刊:Carbon
[Elsevier]
日期:2015-09-01
卷期号:91: 88-95
被引量:178
标识
DOI:10.1016/j.carbon.2015.04.049
摘要
Designed as an anode material for sodium ion batteries, nitrogen-doped carbon sheets (NCSs) were successfully synthesized using graphene and dopamine as template and carbon precursor, respectively. The NCSs demonstrate high reversible capacity and excellent rate performance, delivering a high reversible capacity of 382 mAh g−1 at 50 mA g−1 after 55 cycles. Even up to 10 A g−1, a rate capacity of 75 mAh g−1 can be obtained. Furthermore, NCSs also have remarkable cycling stability with specific capacity of 165 mAh g−1 after 600 cycles (under 200 mA g−1). The excellent performance of NCSs can be ascribed to the nitrogen-doped two-dimension sheet structure.
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