Jump to main content
Jump to site search


Green synthesis of Se/HPCF-rGO composite towards Li - Se batteries with excellent long-term cycling performances

Abstract

In the present work, we designed a dual-spatially carbon protection strategy for Se reservoir, in which Se/hierarchical porous carbon fibers (Se/HPCF) composite was homogeneously anchored on the reduced graphene oxide (Se/HPCF-rGO). The HPCF with high specific surface area and large pore volume was synthesized for the first time by using the sodium lignosulfonate (LN) as a green porogen based on an electrospinning route. The Se/HPCF-rGO composite exhibits an excellent electrochemical performance when served as a cathode material for Li–Se batteries. For instance, a high reversible capacity of 616 mAh g-1 was maintained after 50 cycles at a rate of 0.2 C. More importantly, the Se/HPCF-rGO composite delivered a high capacity of 208 mAh g-1 at a high rate of 10 C even after 5000 cycles. The outstanding electrochemical performance can be attributed to the synergistic effect of diverse structural feature and fast reaction kinetics for lithium storage.

Back to tab navigation

Publication details

The article was received on 04 Aug 2017, accepted on 13 Oct 2017 and first published on 13 Oct 2017


Article type: Paper
DOI: 10.1039/C7TA06884K
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
  •   Request permissions

    Green synthesis of Se/HPCF-rGO composite towards Li - Se batteries with excellent long-term cycling performances

    L. Zeng, X. Chen, R. Liu, L. Lin, C. Zheng, L. Xu, F. Luo, Q. Qian, Q. Chen and M. Wei, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA06884K

Search articles by author

Spotlight

Advertisements