The effect of type and concentration of modifier in supercritical carbon dioxide on crystallization of nanocrystalline titania thin films

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10388400" target="_blank" >RIV/00216208:11320/18:10388400 - isvavai.cz</a>
Alternative codes found
RIV/67985858:_____/18:00481564 RIV/61989100:27710/18:10239704
Result on the web
<a href="https://doi.org/10.1016/j.supflu.2017.10.012" target="_blank" >https://doi.org/10.1016/j.supflu.2017.10.012</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.supflu.2017.10.012" target="_blank" >10.1016/j.supflu.2017.10.012</a>

Result language
angličtina
Original language name
The effect of type and concentration of modifier in supercritical carbon dioxide on crystallization of nanocrystalline titania thin films
Original language description
Nanostructured TiO2 anatase thin films were directly prepared using supercritical carbon dioxide (scCO(2)) modified by organic solvent and water in two step processing. Organic solvent used as scCO(2) modifier at 30 MPa and 40 degrees C in the first step of processing was in the second step changed to water with simultaneous temperature increase to 150 degrees C which caused anatase thin films crystallization. The effect of the type of modifier (water, methanol, ethanol and acetone), concentration of modifier (5-40 wt.%) in scCO(2) and the amount of scCO(2) (50-200 g) passed through the high pressure column as well as the type of substrate (soda-lime glass and monocrystalline Si) on microstructure and purity of TiO2 thin films were examined in both steps of processing. The prepared thin films were characterized with respect to their (micro)structural properties by Raman spectroscopy as well as X-ray diffraction, to their wettability by contact angle measurements and to their morphology by high resolution transmission electron microscopy.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
<a href="/en/project/GA14-23274S" target="_blank" >GA14-23274S: Unconventional preparation of nanostructured metal oxides by using pressurized and supercritical fluids</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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