J
Jaroslava Lavkova
Researcher at Charles University in Prague
Publications - 14
Citations - 295
Jaroslava Lavkova is an academic researcher from Charles University in Prague. The author has contributed to research in topics: Cerium oxide & Sputter deposition. The author has an hindex of 10, co-authored 14 publications receiving 263 citations. Previous affiliations of Jaroslava Lavkova include University of Burgundy.
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Journal ArticleDOI
Pt–CeOx thin film catalysts for PEMFC
Roman Fiala,Michal Vaclavu,Andrii Rednyk,Ivan Khalakhan,Mykhailo Vorokhta,Jaroslava Lavkova,Valérie Potin,Iva Matolínová,Vladimír Matolín +8 more
TL;DR: In this paper, the authors measured Pt-CeOx thin film anode catalyst activity in a hydrogen PEMFC and compared it with performance of a standard reference cell, using photoelectron spectroscopy.
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High efficiency of Pt2+- CeO2 novel thin film catalyst as anode for proton exchange membrane fuel cells
Roman Fiala,Alberto Figueroba,Albert Bruix,Michal Vaclavu,Andrii Rednyk,Ivan Khalakhan,Mykhailo Vorokhta,Jaroslava Lavkova,Jaroslava Lavkova,Francesc Illas,Valérie Potin,Iva Matolínová,Konstantin M. Neyman,Konstantin M. Neyman,Vladimír Matolín +14 more
TL;DR: In this article, a family of novel anode catalysts consisting of thin films of ceria with low Pt loadings sputtered on a nanostructured carbon support was designed to increase the cost-efficiency in proton exchange membrane fuel cells.
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Proton exchange membrane fuel cell made of magnetron sputtered Pt–CeOx and Pt–Co thin film catalysts
Roman Fiala,Michal Vaclavu,Mykhailo Vorokhta,Ivan Khalakhan,Jaroslava Lavkova,Jaroslava Lavkova,Valérie Potin,Iva Matolínová,Vladimír Matolín +8 more
TL;DR: In this paper, a single cell PEMFC catalyzed by using exclusively thin film approach by combining state-of-the-art Pt-doped cerium oxide anode and a new Pt-Co alloy cathode was tested.
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Surface composition of magnetron sputtered Pt-Co thin film catalyst for proton exchange membrane fuel cells
Mykhailo Vorokhta,Ivan Khalakhan,Michal Václavů,Gábor Kovács,Sergey M. Kozlov,Peter Kúš,Tomáš Skála,N. Tsud,Jaroslava Lavkova,Valérie Potin,Iva Matolínová,Konstantin M. Neyman,Konstantin M. Neyman,Vladimír Matolín +13 more
TL;DR: In this paper, the surface composition of as-deposited and annealed 1:1 Pt-Co films was investigated by surface analysis techniques, such as synchrotron radiation photoelectron spectroscopy and X-ray photo electromagnetic spectrographs.
Journal ArticleDOI
Preparation of magnetron sputtered thin cerium oxide films with a large surface on silicon substrates using carbonaceous interlayers.
Martin Dubau,Jaroslava Lavkova,Jaroslava Lavkova,Ivan Khalakhan,Stanislav Haviar,Valérie Potin,Vladimír Matolín,Iva Matolínová +7 more
TL;DR: It is shown that the structure and morphology of the deposited layers depend on the oxygen concentration in working gas used for cerium oxide deposition, and the CNx films were found to be much less resistant to oxygen etching than the a-C film.