MilliporeSigma

Harnessing thermal expansion mismatch to form hollow nanoparticles.

Small (Weinheim an der Bergstrasse, Germany) (2012-11-06)
Ilan Jen-La Plante, Taleb Mokari
ABSTRACT

Nano popcorn: a new formation mechanism for the synthesis of hollow metal oxide nanoparticles through a melt fracture mechanism. The hollow nanoparticles are formed via brittle fracture following the generation of tensile stresses arising due to liquid-phase thermal expansion of a low melting point core metal. The progress of this physical process can be monitored using in situ transmission electron microscopy for a model system of indium/indium oxide.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Indium(III) oxide, 99.998% trace metals basis
Sigma-Aldrich
Indium(III) oxide, 99.99% trace metals basis
Sigma-Aldrich
Indium(III) oxide, nanopowder, <100 nm particle size (TEM), 99.9% trace metals basis