Ge nanoparticles by direct oxidation of Zintl alloys and their electrochemical behavior as anodes of Li-ion batteries

Mathilde Pelosi, Monique Tillard, David Zitoun

Research output: Contribution to journalArticlepeer-review

Abstract

Germanium nanoparticles (NPs) are obtained by direct oxidation of a solid-state Na12Ge17 Zintl phase used as germanium precursor. Alcohols are chosen as oxidizing agents in a room-temperature process. The materials are characterized by X-ray diffraction, transmission electron microscopy, and Raman spectroscopy. The nature of the alcohol influences the final products and their crystallinity. The germanium NPs, tested as anodic materials for lithium ion batteries, display interesting behaviors with initial capacities up to 1,530 mAh g-1.

Original languageEnglish
Article number1872
JournalJournal of Nanoparticle Research
Volume15
Issue number8
DOIs
StatePublished - Aug 2013

Keywords

  • Battery
  • Germanium
  • Li-ion
  • Nanocrystals
  • Nanoparticles

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Condensed Matter Physics
  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Modelling and Simulation

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