煤焦油合成氮掺杂中孔炭纳米片及其储锂性能

王浩强; 赵宗彬; 陈 梦; 肖 南; 李蓓蓓; 邱介山

煤焦油合成氮掺杂中孔炭纳米片及其储锂性能

大连理工大学炭素材料研究室,辽宁省能源材料化工重点实验室,精细化工国家重点实验室,辽宁大连11602

基金项目: 国家自然科学基金(50172028)

详细信息

作者简介:
王浩强,硕士研究生. E-mail: wanghaoqiang824@163. com

通讯作者:
赵宗彬,教授. E-mail: zbzhao@dlut.edu.cn;邱介山,教授. E-mail: jqiu@dlut.edu.cn

中图分类号: TQ127. 1⁺ 1
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- 被引次数: 0
出版历程
- 收稿日期: 2014-06-09
- 录用日期: 2014-09-05
- 修回日期: 2014-08-10
- 刊出日期: 2014-08-30

Nitrogen-doped mesoporous carbon nanosheets from coal tar as high performance anode materials for lithium ion batteries

Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China

Funds: National Natural Science Foundation of China (50172028).

More Information

Author Bio:
WANG Hao-qiang, Master Student. E-mail: wanghaoqiang824@163. com

Corresponding author: ZHAO Zong-bin, Professor. E-mail: zbzhao@dlut.edu.cn; QIU Jie-shan, Professor. E-mail: jqiu@dlut.edu.cn

摘要

摘要: 以煤焦油为碳源,三聚氰胺为氮源,MgO 纳米片为模板,通过预氧化和炭化过程合成出氮掺杂中孔炭纳米片 (NMCNs),可实现对中孔炭材料的孔结构和氮掺杂含量的调控。所制中孔炭材料具有独特的中孔和片状结构,比表面积较大(1209m² / g),氮掺杂量较高(8. 6% )。将其应用于锂离子电池负极材料,NMCNs 展现出比容量高和循环稳定性优良的特性,在电流密度为100mA / g 时具有高达1 000mAh / g 的比容量。
- 氮掺杂 /
- 中孔炭纳米片 /
- 煤焦油 /
- 模板 /
- 锂离子电池
Abstract: Nitrogen-doped mesoporous carbon nanosheets (NMCNs) were prepared from coal tar and melamine using a layered MgO as template. Porous structures and nitrogen doping levels were readily tuned by adjusting experimental parameters. NMCNs show high specific capacities and excellent cyclic stabilities as anode materials for lithium ion batteries. A sample prepared under optimum conditions shows a high reversible capacity of nearly 1 000 mAh / g at a current density of 100 mA / g, which can be ascribed to its unique mesoporous sheet-structure, a high specific surface area of 1 209 m²/ g, and a uniform and high bulk nitrogen content of 8. 6% . Our work demonstrates that coal tar can act as an excellent carbon source for the production of carbon materials with high performance in lithium-ion batteries.
- Nitrogen-doped /
- Mesoporous carbon nanosheets /
- Coal tar /
- Template /
- Lithium ion batteries