摘要
Nitrogen-enriched porous carbon nanofiber networks (NPCNFs) were successfully prepared by using low-cost melamine and polyacrylonitrile as precursors via electrospinning followed by carbonization and NH3 treatments. The NPCNFs exhibited inter-connected nanofibrous morphology with a large specific surface area, well-developed microporous structure, relatively high-level nitrogen doping and great amount of pyridinic nitrogen. As free-standing new anode materials in lithium-ion batteries (LIBs), the NPCNFs showed ultrahigh capacity, good cycle performance and superior rate capability with a reversible capacity of as high as 1323 mA h g-1 at a current density of 50 mA g-1. These attractive characteristics make the NPCNFs materials very promising anode candidates for high-performance LIBs and, as free-standing electrode materials to be used in other energy conversion and storage devices.
源语言 | 英语 |
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页(从-至) | 19678-19684 |
页数 | 7 |
期刊 | Journal of Materials Chemistry A |
卷 | 2 |
期 | 46 |
DOI | |
出版状态 | 已出版 - 14 12月 2014 |
已对外发布 | 是 |