Klára Ševčíková
Charles University in Prague
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Publication
Featured researches published by Klára Ševčíková.
Journal of Chemical Physics | 2015
Nataliya Tsud; Sofiia Bercha; Klára Ševčíková; Robert G. Acres; Kevin C. Prince; Vladimír Matolín
The adsorption of adenine on Cu(111) was studied by photoelectron and near edge x-ray absorption fine structure spectroscopy. Disordered molecular films were deposited by means of physical vapor deposition on the substrate at room temperature. Adenine chemisorbs on the Cu(111) surface with strong rehybridization of the molecular orbitals and the Cu 3d states. Annealing at 150 °C caused the desorption of weakly bonded molecules accompanied by formation of a short-range ordered molecular adlayer. The interface is characterized by the formation of new states in the valence band at 1.5, 7, and 9 eV. The present work complements and refines existing knowledge of adenine interaction with this surface. The coverage is not the main parameter that defines the adenine geometry and adsorption properties on Cu(111). Excess thermal energy can further rearrange the molecular adlayer and, independent of the initial coverage, the flat lying stable molecular adlayer is formed.
Chemsuschem | 2014
Yaroslava Lykhach; Armin Neitzel; Klára Ševčíková; Viktor Johánek; Nataliya Tsud; Tomáš Skála; Kevin C. Prince; Vladimír Matolín; Jörg Libuda
Towards a molecular understanding of the mechanism behind catalytic reforming of bioderived hydrocarbon oxygenates, we explore the C-C bond scission of C2 model compounds (acetic acid, ethanol, ethylene glycol) on ceria model catalysts of different complexity, with and without platinum. Synchrotron photoelectron spectroscopy reveals that the reaction pathway depends very specifically on both the reactant molecule and the catalyst surface. Whereas C-C bond scission on Pt sites and on oxygen vacancies involves intermittent surface carbon species, the reaction occurs without any carbon formation and deposition for ethylene glycol on CeO2(111).
Angewandte Chemie | 2014
Albert Bruix; Yaroslava Lykhach; Iva Matolínová; Armin Neitzel; Tomáš Skála; Nataliya Tsud; Mykhailo Vorokhta; Vitalii Stetsovych; Klára Ševčíková; Josef Mysliveček; Roman Fiala; Michal Václavů; Kevin C. Prince; Stéphanie Bruyère; V. Potin; Francesc Illas; Vladimír Matolín; Jörg Libuda; Konstantin M. Neyman
Journal of Physical Chemistry C | 2016
Armin Neitzel; Alberto Figueroba; Yaroslava Lykhach; Tomáš Skála; Mykhailo Vorokhta; Nataliya Tsud; Sascha Mehl; Klára Ševčíková; Kevin C. Prince; Konstantin M. Neyman; Vladimír Matolín; Jörg Libuda
Applied Surface Science | 2015
Klára Ševčíková; Tatiana Kolářová; Tomáš Skála; Nataliya Tsud; Michal Václavů; Yaroslava Lykhach; Vladimír Matolín; V. Nehasil
Angewandte Chemie | 2014
Albert Bruix; Yaroslava Lykhach; Iva Matolínová; Armin Neitzel; Tomáš Skála; Nataliya Tsud; Mykhailo Vorokhta; Vitalii Stetsovych; Klára Ševčíková; Josef Mysliveček; Roman Fiala; Michal Václavů; Kevin C. Prince; Stéphanie Bruyère; V. Potin; Francesc Illas; Vladimír Matolín; Jörg Libuda; Konstantin M. Neyman
Applied Surface Science | 2014
Mykhailo Vorokhta; Iva Matolínová; Martin Dubau; S. Haviar; Ivan Khalakhan; Klára Ševčíková; Toshiyuki Mori; Hideki Yoshikawa; Vladimír Matolín
Journal of Physical Chemistry C | 2016
Klára Ševčíková; Lucie Szabová; Miroslav Kettner; Petr Homola; Nataliya Tsud; Stefano Fabris; Vladimír Matolín; V. Nehasil
Materials Research Bulletin | 2015
Klára Ševčíková; V. Nehasil; Mykhailo Vorokhta; S. Haviar; Vladimír Matolín; Iva Matolínová; K. Mašek; Igor Píš; Keisuke Kobayashi; Masaaki Kobata; Takahiro Nagata; Yoshitaka Matsushita; Hideki Yoshikawa
International Journal of Hydrogen Energy | 2016
Peter Kúš; Anna Ostroverkh; Klára Ševčíková; Ivan Khalakhan; Roman Fiala; Tomáš Skála; Nataliya Tsud; Vladimír Matolín