Facile synthesis of coaxial CNTs/MnOx-carbon hybrid nanofibers and their greatly enhanced lithium storage performance

Authors

Zunxian Yang, Fuzhou University, University of WollongongFollow
Jun Lv, Fuzhou University
Haidong Pang, Fuzhou University
Wenhuan Yan, Fuzhou University
Kun Qian, Fuzhou University
Tailiang Guo, Fuzhou University
Zaiping Guo, University of WollongongFollow

RIS ID

104420

Publication Details

Yang, Z., Lv, J., Pang, H., Yan, W., Qian, K., Guo, T. & Guo, Z. (2015). Facile synthesis of coaxial CNTs/MnO_x-carbon hybrid nanofibers and their greatly enhanced lithium storage performance. Scientific Reports, 5 17473-1-17473-10.

Abstract

Carbon nanotubes (CNTs)/MnO_x-Carbon hybrid nanofibers have been successfully synthesized by the combination of a liquid chemical redox reaction (LCRR) and a subsequent carbonization heat treatment. The nanostructures exhibit a unique one-dimensional core/shell architecture, with one-dimensional CNTs encapsulated inside and a MnO_x-carbon composite nanoparticle layer on the outside. The particular porous characteristics with many meso/micro holes/pores, the highly conductive one-dimensional CNT core, as well as the encapsulating carbon matrix on the outside of the MnOx nanoparticles, lead to excellent electrochemical performance of the electrode. The CNTs/MnO_x-Carbon hybrid nanofibers exhibit a high initial reversible capacity of 762.9 mAh^-1, a high reversible specific capacity of 560.5 mAh^-1 after 100 cycles, and excellent cycling stability and rate capability, with specific capacity of 396.2 mAh^-1 when cycled at the current density of 1000 mA^-1, indicating that the CNTs/MnOx-Carbon hybrid nanofibers are a promising anode candidate for Li-ion batteries.