|
|
Co-Mn Mixed Oxides Preared by Magnetron Sputtering on Meshes as Catalysts for Oxidation of Organic Compounds.
Jirátová, Květa ; Perekrestov, Roman ; Dvořáková, M. ; Balabánová, Jana ; Koštejn, Martin ; Topka, Pavel ; Kšírová, Petra ; Čada, Martin ; Hubička, Zdeněk ; Kovanda, F.
The catalysts with various Mn content were examined by XRD, SEM, FUR. XPS, and Ih-TPR. tested in the gas-phase oxidation of model organic compound (ethanol) and compared with pelletized commercial Co-Mn- Al mixed oxide catalyst (Astin 2-100, Czech Republic, Co:Mn:Al molar ratio of 4:1:1 ).
Fulltext: content.csg -  DOC
Plný tet: 00206B6C274C191104151706 - DOC
|
|
|
The investigation of low pressure HCPJ system for Ti02 film deposition
Perekrestov, Roman ; Kudrna, Pavel (advisor) ; Klusoň, Jan (referee) ; Straňák, Vítězslav (referee)
Title: The investigation of low pressure HCPJ system for TiO2 film deposition Author: Mgr. Roman Perekrestov Department / Institute: Department of Surface and Plasma Science Supervisor of the doctoral thesis: doc. Mgr. Pavel Kudrna, Dr. Abstract: Plasma sources are widely used for deposition of thin films for both commercial solutions as well as for research purposes. In particular, information about plasma parameters in such systems is of a great importance not only to ensure reproducibility, but also for the targeted influence on properties of deposited thin films. The aim of the dissertation was the study of plasma parameters with respect to the growth and properties of thin films deposited by means of HCPJ sputtering system. The investigated plasma system was plasma jet powered in DC mode. The diagnostics of the discharge was carried out by means of a cylindrical Langmuir probe, quadrupole mass and optical spectrometer. Neutral gas temperature in discharge was measured by an optic-fibre thermometer. The growth of nanoparticles in a gas phase was studied using scattering of laser beam light. For the diagnostics of Ti/TiO2 thin films were used XPS, SEM, AFM, TEM, XRD and EDX methods. The photovoltaic performance of TiO2 thin films was tasted in dye-sensitized solar cells. Keywords: plasma jet, Langmuir...
|
guest ::
