Ge nanoparticles by direct oxidation of Zintl alloys and their


Mathilde Pelosi • Monique Tillard • David Zitoun

J Nanopart Res (2013) 15:1872




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.
Keywords Germanium  Nanocrystals 
Nanoparticles  Li-ion  Battery