Functionalized N-doped interconnected carbon nanofibers as an anode material for sodium-ion storage with excellent performance

被引：592

作者：

Wang, Zhaohui ^{[1
]}

Qie, Long ^{[1
]}

Yuan, Lixia ^{[1
]}

Zhang, Wuxing ^{[1
]}

Hu, Xianluo ^{[1
]}

Huang, Yunhui ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China

来源：

CARBON | 2013年 / 55卷

关键词：

RATE CAPABILITY; HIGH-CAPACITY; LITHIUM-ION; ELECTROCHEMICAL PERFORMANCE; ELECTRODE MATERIALS; CATHODE MATERIAL; BATTERIES; NITROGEN; NANOTUBES; INSERTION;

D O I：

10.1016/j.carbon.2012.12.072

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：

The electrochemical performance of sodium-ion battery was improved by using functionalized interconnected N-doped carbon nanofibers (FN-CNFs) as the anode. The material was synthesized with polypyrrole as precursor by a simple method. The FN-CNF electrode exhibits excellent rate capability and cycling stability, delivering a capacity of 134.2 mAh g(-1) at a high current density of 200 mA g(-1) after 200 cycles and retains a capacity of 73 mAh g(-1) even at an extremely high current density of 20 A g(-1). The superior performance can be attributed to N-doped sites and functionalized groups, which are capable of capturing sodium ions rapidly and reversibly through surface adsorption and surface redox reactions. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：328 / 334

页数：7

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