Dopamine derived nitrogen-doped carbon sheets as anode materials for high-performance sodium ion batteries

被引：184

作者：

Yang, Fuhua ^{[1
]}

Zhang, Zhian ^{[1
]}

Du, Ke ^{[1
]}

Zhao, Xingxing ^{[1
]}

Chen, Wei ^{[1
]}

Lai, Yanqing ^{[1
]}

Li, Jie ^{[1
]}

机构：

[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China

来源：

CARBON | 2015年 / 91卷

关键词：

SUPERIOR RATE CAPABILITY; ULTRALONG CYCLE LIFE; LITHIUM STORAGE; LOW-COST; NANOFIBERS; INSERTION; ELECTRODES; NANOSHEETS; COMPOSITE; GERMANIUM;

D O I：

10.1016/j.carbon.2015.04.049

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：

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. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：88 / 95

页数：8

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