Cost-effective carbon supported Fe2O3 nanoparticles as an efficient catalyst for non-aqueous lithium-oxygen batteries

M. C. Wu, T. S. Zhao, P. Tan, H. R. Jiang, X. B. Zhu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

26 Citations (Scopus)

Abstract

In this work, we synthesize inexpensive Vulcan XC-72 carbon supported Fe2O3 nanoparticles (Fe2O3/XC) as an oxygen evolution reaction (OER) catalyst for non-aqueous lithium-oxygen batteries. It is demonstrated that the battery with the Fe2O3/XC cathode exhibits a charge voltage plateau of 4.01 V at a current density of 200 mA g-1, which is 0.43 V lower than that with the pure XC carbon cathode. The battery also presents an outstanding rate capability, giving a charge voltage plateau of 3.99, 4.01 and 4.15 V at the current density of 100, 200 and 400 mA g-1, respectively. Furthermore, the battery can be operated for 50 cycles at a fixed capacity of 500 mA h g-1 without obvious degradation, showing its superior cycling stability. The results suggest that the iron oxide is a cost-effective catalyst for non-aqueous lithium-oxygen batteries.

Original languageEnglish
Pages (from-to)545-551
Number of pages7
JournalElectrochimica Acta
Volume211
DOIs
Publication statusPublished - 1 Sep 2016
Externally publishedYes

Keywords

  • catalyst
  • charge voltage
  • iron oxide
  • Non-aqueous lithium-oxygen batteries
  • oxygen evolution reaction

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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