期刊
ACS APPLIED MATERIALS & INTERFACES
卷 5, 期 19, 页码 9537-9545出版社
AMER CHEMICAL SOC
DOI: 10.1021/am402368p
关键词
two dimensional; carbon nanosheets; high-rate anode; lithium-ion battery
资金
- National Natural Science Foundation of China [51002188, 51272173]
- Foundation for the Author of National Excellent Doctoral Dissertation of China [201145]
- Natural Science Foundation of Tianjin City [12JCYBJC11700]
- Program for New Century Excellent Talents in University [NCET-12-0408]
- Elite Scholar Program of Tianjin University
- Innovation Foundation of Tianjin University
- National Basic Research Program of China [2010CB934700]
- Key Projects for the Science & Technology Pillar Program of Tianjin City [12ZCZDGX00800]
Two-dimensional (2D) porous graphitic carbon nanosheets (PGC nanosheets) as a high-rate anode material for lithium storage were synthesized by an easy, low-cost, green, and scalable strategy that involves the preparation of the PGC nanosheets with Fe and Fe3O4 nanoparticles embedded (indicated with (Fe&Fe3O4)@PGC nanosheets) using glucose as the carbon precursor, iron nitrate as the metal precursor, and a surface of sodium chloride as the template followed by the subsequent elimination of the Fe and Fe3O4 nanoparticles from the (Fe&Fe3O4)@PGC nanosheets by acid dissolution. The unique 2D integrative features and porous graphitic characteristic of the carbon nanosheets with high porosity, high electronic conductivity, and outstanding mechanical flexibility and stability are very favorable for the fast and steady transfer of electrons and ions. As a consequence, a very high reversible capacity of up to 722 mAh/g at a current density of 100 mA/g after 100 cycles, a high rate capability (535, 380, 200, and 115 mAh/g at 1, 10, 20, and 30 C, respectively, 1 C = 372 mA/g), and a superior cycling performance at an ultrahigh rate (112 mAh/g at 30 C after 570 charge-discharge cycles) are achieved by using these nanosheets as a lithium-ion-battery anode material.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据