Growth of carbon nanofibers through chemical vapor deposition for enhanced sodium ion storage

• Published in: Materials research bulletin Vol. 133; p. 111049
• Main Authors: Xue, Zexing, Xiong, Qinqin, Zou, Chenxiao, Chi, Hongzhong, Hu, Xiaoshi, Ji, Zhenguo
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2021
• Subjects: Anode; Carbon nanofibers; Chemical vapor deposition; Sodium ion batteries; Carbon nanofibers; Sodium ion batteries; Anode; Chemical vapor deposition
• ISSN: 0025-5408; 1873-4227
• DOI: 10.1016/j.materresbull.2020.111049

[Display omitted] •We prepared hybrid carbon nanofibers by a facile chemical vapor deposition method.•The carbon nanofibers show linear and spiral structures with diameters of 50−150 nm.•The carbon nanofibers achieve good Na-ion storage performance. Innovation of carbon anodes plays a significant role in the commercialization of Sodium-ion batteries. In this work, we report hybrid carbon nanofibers synthesized by a facile chemical vapor deposition method and explore their application potential as anode for sodium ion storage. The designed hybrid carbon nanofibers have diameters of 50−150 nm and show linear and spiral structures. Impressively, the carbon nanofibers anode exhibits good electrochemical performance with a high initial Coulombic efficiency of 87.6 % and excellent cycling stability with a capacity retention of 75.4 % at the 100th cycle. The improved Na-ion storage performance is attributed to the carbon nanofiber structure with considerable defect concentration and shortened transfer length for ions and electrons. Moreover, the fibrous structure is interconnected with cross-linked pores, contributing to good mechanical stability and reduced contact resistance. Our work may provide valuable inspiration for developing advanced electrodes for advanced alkali ion energy storage.