Skip to main content
Article
In situ Transmission Electron Microscopy of Solid–Liquid Phase Transition of Silica Encapsulated Bismuth Nanoparticles
Nanoscale
  • Jianjun Hu, University of Dayton
  • Yan Hong, University of Central Florida
  • Christopher Muratore, University of Dayton
  • Ming Su, University of Central Florida
  • Andrey A. Voevodin, Air Force Research Laboratory
Document Type
Article
Publication Date
1-1-2011
Abstract

The solid–liquid phase transition of silica encapsulated bismuth nanoparticles was studied by in situ transmission electron microscopy (TEM). The nanoparticles were prepared by a two-step chemical synthesis process involving thermal decomposition of organometallic precursors for nucleating bismuth and a sol–gel process for growing silica. The microstructural and chemical analyses of the nanoparticles were performed using high-resolution TEM, Z-contrast imaging, focused ion beam milling, and X-ray energy dispersive spectroscopy. Solid–liquid–solid phase transitions of the nanoparticles were directly recorded by electron diffractions and TEM images. The silica encapsulation of the nanoparticles prevented agglomeration and allowed particles to preserve their original volume upon melting, which is desirable for applications of phase changenanoparticles with consistently repeatable thermal properties.

Inclusive pages
3700-3704
ISBN/ISSN
2040-3364
Publisher
Royal Society of Chemistry
Peer Reviewed
Yes
Citation Information
Jianjun Hu, Yan Hong, Christopher Muratore, Ming Su, et al.. "In situ Transmission Electron Microscopy of Solid–Liquid Phase Transition of Silica Encapsulated Bismuth Nanoparticles" Nanoscale Vol. 3 (2011)
Available at: http://works.bepress.com/christopher-muratore/9/