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Nano Research

Article Title

Osiers-sprout-like heteroatom-doped carbon nanofibers as ultrastable anodes for lithium/sodium ion storage

Authors

Hang Zhang, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
Guanhua Zhang, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, National Engineering Research Center for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
Zhiqin Li, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, National Engineering Research Center for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
Ke Qu, Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
Huimin Shi, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, National Engineering Research Center for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
Qingfeng Zhang, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, National Engineering Research Center for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
Huigao Duan, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, National Engineering Research Center for High Efficiency Grinding, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China
Jianhui Jiang, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China

Keywords

doped carbon nanofibers, carbothermic reduction, anodes, lithium-ion batteries, sodium-ion batteries

Abstract

ABSTRACT We report an in situ carbothermic reduction process to prepare osiers-sprout-like heteroatom-doped carbon nanofibers. The dosage of copper salts and a unique annealing process have a crucial effect on the development of this unique carbon structure. A systematic analysis is performed to elucidate the possible mechanism of synthesis of the carbon nanofibers decorated with carbon bubbles. As anodes for rechargeable lithium/sodium ion batteries, the heteroatom-doped nanofibers exhibit high reversible capacities and satisfactory long-term cycling stabilities. The osiers-sprout-like heteroatom-doped carbon nanofiber electrodes deliver an ultrastable cycling performance with reversible capacities of 480 and 160 mAh·g−1 for lithium-ion and sodium-ion batteries after 900 cycles at a current density of 800 mA·g−1, respectively.

Graphical Abstract

Publisher

Tsinghua University Press

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