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Showing 1 to 9 of 9 for “"TiO2/SiO2"”.
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Development of Au/TiO2/SiO2 photocatalysts and their application as self-cleaning and depolluting coatings for building materials
… Sin embargo, la efectividad del TiO2 se encuentra limitada bajo iluminación solar debido a su absorción restringida al rango ultravioleta, por lo que resulta imprescindible, para estos fines, modificar los fotocatalizadores de TiO2 para aprovechar más eficientemente la luz solar. …
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Novel Materials and Processes for Fabrication of Integrated Photonic and Opto-Electronic Devices
… is synthesized and used to create thin films of TiO2, SiO2, and blends of the two. Films created from the sols range from 100nm to 5 microns when formed by the spin coating method. TiO2 films have a high index and high dielectric constant that make them ideal for small single mode waveguides, …
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Materiali Ceramici per Edilizia con Funzionalità Fotocatalitica
… 2. The second one foresaw the synthesis of TiO2-SiO2 solid solutions, using the following stoichiometry: Ti1-xSixO2 where x = 0, 0.1, 0.3 and 0.5 atoms per formula unit (apfu). The mixtures were then fired following two thermal cycles, each with three maximum temperatures. The effect of SiO2 …
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Photoelektronenspektroskopische Untersuchungen an Mischoxidkatalysatoren
… zeigen. Ferner wurde das binäre System TiO2/SiO2 untersucht, das sowohl als katalytisches Material an sich als auch als modifiziertes Trägersystem zur Verankerung von Edelmetallen auf SiO2-Oberflächen Verwendung findet. Das Hauptaugenmerk lag jedoch auf phosphorpromotierten …
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Optical resistance of dielectric coatings to multi-pulse femtosecond laser radiation /
… experimental investigations on multi-layer ZrO2/SiO2, HfO2/SiO2, Ta2O5/SiO2, TiO2/SiO2 high reflection coatings and single-layer TiO2 have yielded several important results. To summarize: stepwise change of LIDT values was experimentally observed at the wavelength where two-photon absorption …
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Titania-silica composite materials for self-cleaning applications on monumental stones
… for the Doctoral Thesis presented, mesoporous TiO2-SiO2 composites that have photocatalytic activity have been synthesized by mixing ethoxysilane oligomers and TiO2 nanoparticles in the presence of a non-ionic surfactant (noctylamine). The products synthesized have a clear practical application …
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Processing and Physical Functionality of Multicomponent High Entropy Materials
… of magnetron sputtered Alnico α1 films on Pt/TiO2/SiO2/Si substrates, resulting from the Pt interdiffusion between the α1 phase and Pt buffer layer. In Chapter 5, we develop a two-step vapor deposition method to grow a new (FeCoNiCrMo)Sex high entropy selenide thin film by magnetron sputtering …
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Ανάπτυξη αποδοτικού καταλυτικού συστήματος καταστροφής υδρογονανθράκων της ατμόσφαιρας
… Pt/MxOy εξαρτάται από την φύση του φορέα (CeO2, TiO2, SiO2, Al2O3, La2O3, κ.λ.) µε το Pt/CeO2 να παρουσιάζει την µεγαλύτερη ενεργότητα σε χαµηλές θερµοκρασίες. H αύξηση της ποσότητας του Pt από 0.5% έως 5.0% οδηγεί σε σηµαντική µετατόπιση της καµπύλης µετατροπής του τολουολίου προς χαµηλότερες …
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The sorption of uranium(VI) and neptunium(V) onto surfaces of selected metal oxides and alumosilicates studied by in situ vibrational spectroscopy
… This includes several metal oxides, namely TiO2, Al2O3, and SiO2, serving as model systems for the elucidation of more complex mineral systems, and several alumosilicates, such as kaolinite, muscovite and biotite. From a multiplicity of in situ experiments, the impact of sorbent …