Nanofibers with MoS2 nanosheets encapsulated in carbon as a binder-free anode for superior lithium storage

Publication date: December 2018Source: New Carbon Materials, Volume 33, Issue 6Author(s): Xiu Zhang, Ya-kai Deng, Yan-li Wang, Liang Zhan, Shu-bin Yang, Yan SongAbstractOne-dimensional MoS2/carbon nanofibers (MoS2-CNFs) were synthesized by electrospinning using exfoliated MoS2 nanosheets and polyacrylonitrile as the precursors. The exfoliated MoS2 nanosheets about 150 nm across were encapsulated in carbon, and the free-standing MoS2/CNF film was easily cut into a flexible tablet that could be directly used as a binder-free anode for lithium storage. The MoS2/CNFs showed a high reversible capacity of 700 mAh g−1 at 100 mA g−1 after 50 cycles, a high rate capacity of 450 mAh g−1 at 1000 mA g−1 after 200 cycles and good cycling stability.

Source: New Carbon Materials - January 18, 2019 Category: Chemistry Source Type: research