High surface area nanocrystalline hausmannite synthesized by a solvent-free route

Daniel Herrera-Miranda, Alexandre Ponrouch, Josefina Pons, Concepción Domingo, M. Rosa Palacín, José A. Ayllón

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

Nanocrystalline high surface area Mn 3O 4 powder was obtained at low temperature by a solvent-free route. The precursor was a mixture of manganese (II) acetate, 3,6,9-trioxadecanoic acid (TODA) and ammonium acetate that were intimately mixed by grounding in an agate mortar. Nanocrystalline Mn 3O 4 was obtained by thermal treatment at 120°C. Powder X-ray diffraction, selected area electron diffraction, high resolution transmission electron microscopy, and Fourier transformed infrared characterization confirmed the formation of the hausmannite phase. The as-prepared mesoporous material has high specific surface area (120 m 2 g -1). The performances of tape casted Mn 3O 4 nanopowder electrodes were investigated as anode material for lithium ion batteries. High capacity values were achieved at diverse C rates. Capacity fading was found to be dependent on the upper cut off voltage, the presence of a plateau at 2.25 V vs. Li +/Li being detrimental for long term cyclability. © 2012 Elsevier Ltd.
Original languageEnglish
Pages (from-to)2369-2374
JournalMaterials Research Bulletin
Volume47
Issue number9
DOIs
Publication statusPublished - 1 Sep 2012

Keywords

  • A. Oxides
  • B. Chemical synthesis
  • C. Electrochemical measurements
  • D. Electrochemical properties
  • D. Energy storage

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