In-Situ Crafting of ZnFe2O4 Nanoparticles Impregnated within Continuous Carbon Network as Advanced Anode Materials

Beibei Jiang, Cuiping Han, Bo Li, Yanjie He, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

189 Scopus citations

Abstract

The ability to create a synergistic effect of nanostructure engineering and its hybridization with conductive carbonaceous material is highly desirable for attaining high-performance lithium ion batteries (LIBs). Herein, we judiciously crafted ZnFe2O4/carbon nanocomposites composed of ZnFe2O4 nanoparticles with an average size of 16 ± 5 nm encapsulated within the continuous carbon network as anode materials for LIBs. Such intriguing nanocomposites were yielded in situ via the pyrolysis-induced carbonization of polystyrene@poly(acrylic acid) (PS@PAA) core@shell nanospheres in conjunction with the formation of ZnFe2O4 nanoparticles through the thermal decomposition of ZnFe2O4 precursors incorporated within the PS@PAA nanospheres. By systematically varying the ZnFe2O4 content in the ZnFe2O4/carbon nanocomposites, the nanocomposite containing 79.3 wt % ZnFe2O4 was found to exhibit an excellent rate performance with high capacities of 1238, 1198, 1136, 1052, 926, and 521 mAh g-1 at specific currents of 100, 200, 500, 1000, 2000, and 5000 mA g-1, respectively. Moreover, cycling performance of the ZnFe2O4/carbon nanocomposite with 79.3 wt % ZnFe2O4 at specific currents of 200 mA g-1 delivered an outstanding prolonged cycling stability for several hundred cycles.

Original languageEnglish
Pages (from-to)2728-2735
Number of pages8
JournalACS Nano
Volume10
Issue number2
DOIs
StatePublished - 23 Feb 2016

Bibliographical note

Publisher Copyright:
© 2016 American Chemical Society.

Keywords

  • ZnFeO nanoparticles
  • advanced anode
  • continuous carbon network
  • lithium-ion batteries

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