Abstract
SiO2-coated W-VO2(M) nanoparticles were synthesized by a precipitation method and then modified with tetraethylorthosilicate as a precursor using the Stöber process, to enhance oxidation stability. W-VO2(M) nanoparticles were uniformly coated with a SiO2 layer approximately 25 nm in thickness. Based on XRD and DSC characterization, the crystal structure and phase transition temperature of SiO2-coated W-VO2(M) are almost the same as before SiO2 coating. Upon exposure to 80% water vapor pressure at 80 C, the coated nanoparticles maintain their structure, phase transition temperature, and morphology for a longtime compared to uncoated W-VO2(M) particles, and show improved oxidation stability.
Original language | English |
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Pages (from-to) | 510-513 |
Number of pages | 4 |
Journal | Nanoscience and Nanotechnology Letters |
Volume | 8 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2016 Jun 1 |
Keywords
- Core-Shell Structure
- Energy Efficiency
- Oxidation Stability
- Phase Transition Nanoparticle
- Vanadium Dioxide
ASJC Scopus subject areas
- Materials Science(all)