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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Nanostructured metal substrates for model electrocatalysis
 Škvára, Jan ; Mysliveček, Josef (advisor) ; Stetsovych, Oleksandr (referee)
This thesis studies preparation of nanostructured Pt(111) surfaces for usage in model electrocatalytic experiments. A method is presented, that uses ion erosion of the sur- face at elevated temperature for surface preparation. The results of the thesis suggest, that comparing to other methods of nanostructured surface preparation in present elec- trochemical practice the ion erosion is an effective and practical tool for preparation of surfaces with morphology controlled at the atomic level and that it has a potential to accelerate the development of knowledge in this area. 1
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Investigating model CeO2 and TiO2 systems by means of Scanning Tunneling Microscopy and Atomic Force Microscopy
 Stetsovych, Oleksandr ; Mysliveček, Josef (advisor) ; Jelínek, Pavel (referee) ; Klapetek, Petr (referee)
Atomic scale characterization of materials is important for the fundamental understanding of their properties. Here, model systems of industrially relevant cerium and titanium oxides are characterized with the combination of the Scanning Tunneling Microscopy (STM) and Non Contact Atomic Force Microscopy (NC AFM). Cerium oxide model systems are represented by fully oxidized and partially reduced ultra-thin ceria films supported on copper single crystal. Interaction of the model ceria systems with catalytically important adsorbates (water, methanol) is studied on atomic scale. Titanium oxide model systems are represented by pentacene and C60 molecules adsorbed on the surface of bulk titania in anatase polymorph. Organic layers on titania are studied with intramolecular resolution with the help of the newly developed Double pass scanning mode of NC AFM. The atomic contrast formation mechanisms in STM and NC AFM on ceria and anatase surface are presented. Powered by TCPDF (www.tcpdf.org)
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