Journal
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
Volume 31, Issue 8, Pages 879-885Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppsc.201300352
Keywords
-
Funding
- US Department of Energy [DE-AC02-98CH10886]
Ask authors/readers for more resources
Using transmission electron microscopy, the size-dependent room temperature oxidation of tin nanoparticles is studied. The oxide that forms during room temperature oxidation of Sn particles is amorphous SnO, and it retains this stoichiometry and structure over extended time periods. From the investigation of arrays of Sn nanoparticles with broad size distribution, under identical conditions, the Sn oxide thickness is evaluated as a function of size and oxidation time. The oxide thickness depends strongly on the size of the Sn nanoparticles, which is in excellent agreement with predictions for a Mott-Cabrera model corrected for a non-uniform electric field. The results demonstrate the accelerated oxidation kinetics of nanoscale particles with high curvature, due to the amplified electric field at the interface to a continuously shrinking metal core.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available