Substrate effect on phonon confinement in TiO2 nanoparticles for thermal sensing application
Abstract
The great potential of anatase TiO2 nanoparticles (NPs) for high temperature applications is limited by the agglomeration, grain growth, and phase transformation into rutile. In this regard, we have decorated TiO2 NPs over the surface of Santa Barbara Amorphous-15 (SBA15) and studied the substrate effect on the thermal stability of anatase TiO2 NPs in terms of the grain growth and the phase transformation. Here, we reported the ultrafast grain growth of anatase TiO2 NPs in TiO2-SBA15 nanocomposite in response to short time thermal exposure and the resulting phonon confinement effect for high temperature thermal sensing application.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 15, 2014
- Source ID
- 10.1063/1.4895923
Entities
People
- Ashish Kumar Mishra
- Liping Huang
Organizations
- Defense Threat Reduction Agency
- Rensselaer Polytechnic Institute