Synergistically Enhanced Electrochemical Performance of Hierarchical MoS2/TiNb2O7 Hetero-nanostructures as Anode Materials for Li-Ion Batteries

De Pham-Cong, Jun Hee Choi, Jeongsik Yun, Aliaksandr S. Bandarenka, Jinwoo Kim, Paul V. Braun, Se Young Jeong, Chae Ryong Cho

Research output: Contribution to journalArticlepeer-review

Abstract

As potential high-performance anodes for Li-ion batteries (LIBs), hierarchical heteronanostructures consisting of TiNb2O7 nanofibers and ultrathin MoS2 nanosheets (TNO@MS HRs) were synthesized by simple electrospinning/hydrothermal processes. With their growth mechanism revealed, the TNO@MS HRs exhibited an entangled structure both for their ionic and electronic conducting pathways, which enabled the synergetic combination of one- and two-dimensional structures to be realized. In the potential range of 0.001-3 V vs Li/Li+, the TNO@MS HR-based LIBs exhibited high capacities of 872 and 740 mAh g-1 after 42 and 200 cycles at a current density of 1 A g-1, respectively, and excellent rate performance of 611 mAh g-1 at 4 A g-1. We believe that the fabrication route of TNO@MS HRs will find visibility for the use of anode electrodes for high capacity LIBs at low cost.

Original languageEnglish (US)
Pages (from-to)1026-1033
Number of pages8
JournalACS Nano
Volume11
Issue number1
DOIs
StatePublished - Jan 24 2017

Keywords

  • MoS nanosheets
  • TiNbO nanofibers
  • anode
  • hierarchical nanostructure
  • synergetic behavior

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Synergistically Enhanced Electrochemical Performance of Hierarchical MoS<sub>2</sub>/TiNb<sub>2</sub>O<sub>7</sub> Hetero-nanostructures as Anode Materials for Li-Ion Batteries'. Together they form a unique fingerprint.

Cite this