Facile synthesis of α-Fe2O3 nanorods derived from α- FeOOH nanorods and its application as anode materials for rechargeable sodium-ion batteries

Shubo Wang, Wei Wang, Liwen Hu, Zongqian Hu, Shuqiang Jiao, Hongmin Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

α-Fe2O3 nanorods have been successfully obtained by annealing α-FeOOH precursor nanorods synthesized by a facile hydrothermal method. The electrochemical performance of the as-prepared α-Fe2O3 nanorods as anode materials for sodium-ion batteries is tested using galvanostatic charge/discharge cycling. The result indicates that the pesudocapacitor effect dominates the charge/discharge process. The α-Fe2O3 synthesized at different temperature indicates that α-Fe2O3 with a high crystallinity manifests relatively better cycling performance with a capacity of 177 mAh g-1 after 20 cycles at current density of 200 rnA g-1. While the current density increases to 500 mA g-1, the corresponding discharge capacity can still remain as much as 132 mAh·g-1. Meanwhile, XPS spectrum results of the active electrode material asprepared and after a discharge process disclose that the electrochemical reaction mechanism happens in the half-cell sodium ion battery is the reduction of Fe2O 3 to Fe.

Original languageEnglish
Title of host publicationTMS 2014 - 143rd Annual Meeting and Exhibition, Supplemental Proceedings
PublisherMinerals, Metals and Materials Society
Pages883-890
Number of pages8
ISBN (Print)9781118889725
Publication statusPublished - 2014 Jan 1
Externally publishedYes
Event143rd Annual Meeting and Exhibition, TMS 2014 - San Diego, CA, United States
Duration: 2014 Feb 162014 Feb 20

Publication series

NameTMS Annual Meeting

Other

Other143rd Annual Meeting and Exhibition, TMS 2014
CountryUnited States
CitySan Diego, CA
Period14/2/1614/2/20

Keywords

  • Anode material
  • Ferric oxide
  • Sodium-ion batteries

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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