Nízkoteplotní oxidace CO na bimetalických strukturách
Title: Low temperature CO oxidation on bimetallic structures Author: Petr Hanyš Department: Department of Surface and Plasma Science Supervisor: Doc. RNDr. Václav Nehasil, Dr., Department of Surface and Plasma Science Abstract: Bimetallic system Sn-Rh in the form of the model Sn/Rh(111) system, supp...
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Online Access: | http://www.nusl.cz/ntk/nusl-311570 |
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ndltd-nusl.cz-oai-invenio.nusl.cz-3115702018-12-10T04:16:22Z Nízkoteplotní oxidace CO na bimetalických strukturách Low temperature CO oxidation on bimetallic structures Hanyš, Petr Nehasil, Václav Janovská, Michaela Plšek, Jan Title: Low temperature CO oxidation on bimetallic structures Author: Petr Hanyš Department: Department of Surface and Plasma Science Supervisor: Doc. RNDr. Václav Nehasil, Dr., Department of Surface and Plasma Science Abstract: Bimetallic system Sn-Rh in the form of the model Sn/Rh(111) system, supported Rh+Sn/Al2O3 and Rh/SnO2 clusters and Rh/SnO2 and Rh+Sn/Al2O3 powder samples was studied using synchrotron radiation photoelectron spectroscopy (SRPES), X-ray photoelectron spectroscopy (XPS), thermal desorption spectroscopy (TDS), molecular beams (MB), transmission and scanning electron microscopy (TEM, SEM), powder X-ray diffraction (XRD) and high pressure reactor within the framework of the study. It was found that formation of Sn-Rh alloy influences catalytic properties of Rh by lowering CO adsorption energy and capacity. It was also found that presence of Rh in this bimetallic system mediates reversible oxidation/reduction of Sn/SnO2, whereas Sn oxide acts as an oxygen reservoir for low temperature CO oxidation. Keywords: bimetallic systems, rhodium, tin, low temperature CO oxidation 2011 info:eu-repo/semantics/doctoralThesis http://www.nusl.cz/ntk/nusl-311570 cze info:eu-repo/semantics/restrictedAccess |
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Doctoral Thesis |
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Title: Low temperature CO oxidation on bimetallic structures Author: Petr Hanyš Department: Department of Surface and Plasma Science Supervisor: Doc. RNDr. Václav Nehasil, Dr., Department of Surface and Plasma Science Abstract: Bimetallic system Sn-Rh in the form of the model Sn/Rh(111) system, supported Rh+Sn/Al2O3 and Rh/SnO2 clusters and Rh/SnO2 and Rh+Sn/Al2O3 powder samples was studied using synchrotron radiation photoelectron spectroscopy (SRPES), X-ray photoelectron spectroscopy (XPS), thermal desorption spectroscopy (TDS), molecular beams (MB), transmission and scanning electron microscopy (TEM, SEM), powder X-ray diffraction (XRD) and high pressure reactor within the framework of the study. It was found that formation of Sn-Rh alloy influences catalytic properties of Rh by lowering CO adsorption energy and capacity. It was also found that presence of Rh in this bimetallic system mediates reversible oxidation/reduction of Sn/SnO2, whereas Sn oxide acts as an oxygen reservoir for low temperature CO oxidation. Keywords: bimetallic systems, rhodium, tin, low temperature CO oxidation |
author2 |
Nehasil, Václav |
author_facet |
Nehasil, Václav Hanyš, Petr |
author |
Hanyš, Petr |
spellingShingle |
Hanyš, Petr Nízkoteplotní oxidace CO na bimetalických strukturách |
author_sort |
Hanyš, Petr |
title |
Nízkoteplotní oxidace CO na bimetalických strukturách |
title_short |
Nízkoteplotní oxidace CO na bimetalických strukturách |
title_full |
Nízkoteplotní oxidace CO na bimetalických strukturách |
title_fullStr |
Nízkoteplotní oxidace CO na bimetalických strukturách |
title_full_unstemmed |
Nízkoteplotní oxidace CO na bimetalických strukturách |
title_sort |
nízkoteplotní oxidace co na bimetalických strukturách |
publishDate |
2011 |
url |
http://www.nusl.cz/ntk/nusl-311570 |
work_keys_str_mv |
AT hanyspetr nizkoteplotnioxidaceconabimetalickychstrukturach AT hanyspetr lowtemperaturecooxidationonbimetallicstructures |
_version_ |
1718800046488551424 |