期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 29, 页码 15008-15014出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03312h
关键词
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资金
- Thousand Talents Program
- Natural Science Foundation of Jiangsu Province of China [BK20140315]
- National Natural Science Foundation of China [51402202]
- National Basic Research Program of China [2015CB358600]
- Jiangsu Shuangchuang Plan
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Fe/Fe3C homogeneously dispersed in 2D porous nitrogen-doped graphitic carbon nanomeshes (N-Fe/Fe3C@C nanomeshes) was prepared by a novel template-free method using the polypyrrole-Fe (PPy-Fe) coordination complex as a precursor. The designed architecture is beneficial to electron transport and accommodation of the strains of Li insertion/extraction. As an anode material for Li-ion batteries, the as-prepared composite exhibits a reversible capacity of 1316 mA h g(-1) (normalized to the mass of Fe/Fe3C in the composite) with extremely excellent cycling performance at high rate (nearly 100% capacity retention after 500 cycles) and good rate capability. The synthesis approach presents a promising route for a large-scale production of N-Fe/Fe3C@C nanomesh composites as an extremely durable high-rate anode material for Li-ion batteries.
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