Hierarchical porous nitrogen doped carbon derived from horn comb as anode for sodium-ion storage with high performance

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• 作者：Junke Ou ; Lin Yang ; Xianghui Xi
• 关键词：Horn comb ; sodium ion batteries ; hierarchical pore structure ; nitrogen doping
• 刊名：Electronic Materials Letters
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：13
• 期：1
• 页码：66-71
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Condensed Matter Physics; Nanotechnology and Microengineering; Characterization and Evaluation of Materials; Nanotechnology;
• 出版者：The Korean Institute of Metals and Materials
• ISSN：2093-6788
• 卷排序：13

文摘

Horn comb, an abundant biomass waste, has been successfully converted into a hierarchical porous nitrogen doped carbon (HPNDC) via a simple and costeffective approach. Tested as anode for sodium ion batteries (SIBs), horn comb derived carbon shows good rate capability and cycling stability, delivering a high initial charge capacity of 400 mAh g−1 at 100 mA g−1, retaining a reversible capacity of 112 mAh g−1 at 5 A g−1, and exhibiting a capacity of 241 mAh g−1 at 100 mA g−1 after 100 cycles. These superior electrochemical performances can be ascribed to its unique hierarchical pore structure combined with appropriate nitrogen doping effects. We believe that our works will be helpful in promoting the development of high-rate and low-cost sodium ion batteries for large-scale energy storage systems.