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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Use of Water- And Ethanol-Modified Supercritical Carbon Dioxide for Direct Preparation of Crystalline Monolithic TiO2 Aerogels.
 Cerhová, Marie ; Sajfrtová, Marie ; Matějová, L. ; Dřínek, Vladislav ; Daniš, E. ; Jandová, Věra
We studied a combination of supercritical CO2, water and ethanol for the preparation of crystalline and pure nanostructured TiO2 without any thermal processing. The effect of temperature (40-150 °C) and sequence on structural and textural properties was investigated at constant pressure of 30 MPa. The prepared aerogels were characterized with respect to the (micro)structural properties by Raman spectroscopy and X-ray diffraction. The textural properties such as specific surface area, content of mesoporous and volume of microporous were determined from nitrogen physisorption and skeletal density by helium pycnometry measurements.
Fulltext: content.csg - Download fulltextPDF
Plný tet: SKMBT_C22017112810182 - Download fulltextPDF
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