Title
In situ transmission electron microscopy of solid-liquid phase transition of silica encapsulated bismuth nanoparticles
Abbreviated Journal Title
Nanoscale
Keywords
THERMAL-ENERGY STORAGE; HEAT-TRANSFER; PARTICLES; GOLD; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials; Science, Multidisciplinary; Physics, Applied
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 change nanoparticles with consistently repeatable thermal properties.
Journal Title
Nanoscale
Volume
3
Issue/Number
9
Publication Date
1-1-2011
Document Type
Article
DOI Link
Language
English
First Page
3700
Last Page
3704
WOS Identifier
ISSN
2040-3364
Recommended Citation
"In situ transmission electron microscopy of solid-liquid phase transition of silica encapsulated bismuth nanoparticles" (2011). Faculty Bibliography 2010s. 1399.
https://stars.library.ucf.edu/facultybib2010/1399
Comments
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