Spindle-like mesoporous α-Fe₂O₃ anode material prepared from MOF template for high-rate lithium batteries

Nano Lett. 2012 Sep 12;12(9):4988-91. doi: 10.1021/nl302618s. Epub 2012 Aug 14.

Abstract

Spindle-like porous α-Fe(2)O(3) was prepared from an iron-based metal organic framework (MOF) template. When tested as anode material for lithium batteries (LBs), this spindle-like porous α-Fe(2)O(3) shows greatly enhanced performance of Li storage. The particle with a length and width of ∼0.8 and ∼0.4 μm, respectively, was composed of clustered Fe(2)O(3) nanoparticles with sizes of <20 nm. The capacity of the porous α-Fe(2)O(3) retained 911 mAh g(-1) after 50 cycles at a rate of 0.2 C. Even when cycled at 10 C, comparable capacity of 424 mAh g(-1) could be achieved.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electric Power Supplies*
  • Equipment Design
  • Equipment Failure Analysis
  • Ferric Compounds / chemistry*
  • Lithium / chemistry*
  • Materials Testing
  • Metal Nanoparticles / chemistry*
  • Metal Nanoparticles / ultrastructure*
  • Particle Size
  • Porosity

Substances

  • Ferric Compounds
  • ferric oxide
  • Lithium