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Nitrogen-doped graphene nanosheets with excellent lithium storageProperties
Haibo Wang; Chuanjian Zhang; Zhihong Liu; Li Wang; Pengxian Han; Hongxia Xu; Kejun Zhang; Shanmu Dong; Jianhua Yao; Guanglei Cui
2011
发表期刊J. Mater. Chem.
卷号21期号:1页码:5430–5434.
摘要

In this work, nitrogen-doped graphene nanosheets serving as lithium storage materials are presented. The nitrogen-doped graphene nanosheets were prepared by heat treatment ofgraphite oxide under an ammonia atmosphere at 800 °C for 2 h. Scanning electron microscopy,transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopywere employed to characterize the prepared product as nitrogen-doped graphene nanosheetswith a doping level of ca. 2% nitrogen, where the N binding configuration of the grapheneincludes 57.4% pyridinic, 35.0% pyrrolic and 7.6% graphitic N atoms. Galvanostatic charge/discharge experiments revealed that these nitrogen-doped graphene nanosheetsexhibited a high reversible capacity (900 mA h g−1 at 42 mA g−1 (1/20 C)), excellent rate performance (250 mA h g−1 at a current density of 2.1 A g−1 (2.5 C)), and significantly enhanced cycling stability, which demonstrated nitrogen-doped graphene nanosheets to be a promising candidate for anode materials in high rate lithium-ion batteries.

学科领域仿生能源系统
语种英语
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/1167
专题仿生与固态能源系统研究组
推荐引用方式
GB/T 7714
Haibo Wang,Chuanjian Zhang,Zhihong Liu,et al. Nitrogen-doped graphene nanosheets with excellent lithium storageProperties[J]. J. Mater. Chem.,2011,21(1):5430–5434..
APA Haibo Wang.,Chuanjian Zhang.,Zhihong Liu.,Li Wang.,Pengxian Han.,...&Guanglei Cui.(2011).Nitrogen-doped graphene nanosheets with excellent lithium storageProperties.J. Mater. Chem.,21(1),5430–5434..
MLA Haibo Wang,et al."Nitrogen-doped graphene nanosheets with excellent lithium storageProperties".J. Mater. Chem. 21.1(2011):5430–5434..
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