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Non-Thermal Crystallization of TiO2 Thin Films using Supercritical Carbon Dioxide Modified by Ethanol-Water Mixture.
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SYSNO ASEP 0494069 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Non-Thermal Crystallization of TiO2 Thin Films using Supercritical Carbon Dioxide Modified by Ethanol-Water Mixture. Author(s) Sajfrtová, Marie (UCHP-M) RID, ORCID, SAI
Cerhová, Marie (UCHP-M) SAI
Jandová, Věra (UCHP-M) RID, ORCID, SAI
Dřínek, Vladislav (UCHP-M) RID, ORCID, SAI
Matějová, L. (CZ)
Daniš, S. (CZ)Article number D6.6 Source Title Program. - Prague : Czech Society of Chemical Engineering, 2018 - ISBN N Pages s. 35 Number of pages 2 s. Publication form Online - E Action International Congress of Chemical and Process Engineering CHISA 2018 /23./ Event date 25.08.2018 - 29.08.2018 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords ethanol-water mixture ; TiO2 thin films ; temperature Subject RIV CI - Industrial Chemistry, Chemical Engineering OECD category Chemical process engineering Institutional support UCHP-M - RVO:67985858 Annotation In this work, the scCO2 modified by mixture of water and ethanol was used for a preparation of crystalline and pure nanostructured TiO2 thin films in one step processing. All the experiments were performed over precursor titania thin films prepared by reverse micelles assisted sol-gel method, using hardly removable nonionic surfactant Triton X-114, however, forming uniform nano-domains. The effect of temperature (40-150 °C), pressure (10-30 MPa), modifier composition
(20, 50 and 80 % w/w of water in ethanol) and concentration inscCO2 (5-15 wt. %) and consumed amount of solvent (50-200 g) on microstructure and purity
of TiO2 thin films was thoroughly studied by means of Raman spectroscopy, X-ray diffraction, and contact angle measurements.Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2019
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