Enhanced Oxidation Stability of VO2 by Coating SiO2 Layer for Smart Window Applications
- Authors
- Shin, Jee Hye; Kim, Hee Jung; Lee, Ki Bong; Yoo, Jung Whan
- Issue Date
- 6월-2016
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Oxidation Stability; Vanadium Dioxide; Phase Transition Nanoparticle; Core-Shell Structure; Energy Efficiency
- Citation
- NANOSCIENCE AND NANOTECHNOLOGY LETTERS, v.8, no.6, pp.510 - 513
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOSCIENCE AND NANOTECHNOLOGY LETTERS
- Volume
- 8
- Number
- 6
- Start Page
- 510
- End Page
- 513
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/88528
- DOI
- 10.1166/nnl.2016.2065
- ISSN
- 1941-4900
- Abstract
- SiO2-coated W-VO2(M) nanoparticles were synthesized by a precipitation method and then modified with tetraethylorthosilicate as a precursor using the Stober 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 degrees 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.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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