Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Filip Dvořák"'
Autor:
Petr Knotek, Tomáš Plecháček, Jan Smolík, Petr Kutálek, Filip Dvořák, Milan Vlček, Jiří Navrátil, Čestmír Drašar
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 1401-1411 (2019)
This study deals with the preparation and characterization of metallic nanoinclusions on the surface of semiconducting Bi2Se3 that could be used for an enhancement of the efficiency of thermoelectric materials. We used Au forming a 1D alloy through d
Externí odkaz:
https://doaj.org/article/2d96dd95f96647969fb391650c0733df
Autor:
Filip Dvořák, Matteo Farnesi Camellone, Andrii Tovt, Nguyen-Dung Tran, Fabio R. Negreiros, Mykhailo Vorokhta, Tomáš Skála, Iva Matolínová, Josef Mysliveček, Vladimír Matolín, Stefano Fabris
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Single metal atoms promise high catalytic performances, but their implementation in future systems depends on an understanding of how their underlying support medium can offer stabilization. Here, the authors investigate Pt2+on ceria to elucidate thi
Externí odkaz:
https://doaj.org/article/3c3191bebfe9419ab41ec344ee628eb5
Autor:
Michael Andrä, Filip Dvořák, Mykhailo Vorokhta, Slavomír Nemšák, Vladimír Matolín, Claus M. Schneider, Regina Dittmann, Felix Gunkel, David N. Mueller, Rainer Waser
Publikováno v:
APL Materials, Vol 5, Iss 5, Pp 056106-056106-8 (2017)
In this study, we investigated the electronic surface structure of donor-doped strontium titanate. Homoepitaxial 0.5 wt. % donor-doped SrTiO3 thin films were analyzed by in situ near ambient pressure X-ray photoelectron spectroscopy at a temperatu
Externí odkaz:
https://doaj.org/article/636d0c2e04a04d239d9218162b2d1074
Autor:
Matteo Farnesi Camellone, Filip Dvořák, Mykhailo Vorokhta, Andrii Tovt, Ivan Khalakhan, Viktor Johánek, Tomáš Skála, Iva Matolínová, Stefano Fabris, Josef Mysliveček
Publikováno v:
ACS CATALYSIS
Single-atom catalysts represent an essential and ever-growing family of heterogeneous catalysts. Recent studies indicate that besides the valuable catalytic properties provided by single-atom active sites, the presence of single-atom sites on the cat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79ba3808c0f4bf3f69dff838e915e33f
http://arxiv.org/abs/2207.09749
http://arxiv.org/abs/2207.09749
Autor:
Mykhailo Vorokhta, Stefano Fabris, Matteo Farnesi Camellone, Viktor Johánek, Filip Dvořák, Iva Matolínová, Vladimír Matolín, Luigi Bagolini, Josef Mysliveček, Nguyen-Dung Tran, Klára Beranová, Andrii Tovt, Tomáš Skála
Publikováno v:
Journal of Materials Chemistry A 7 (2019): 13019–13028. doi:10.1039/c9ta00823c
info:cnr-pdr/source/autori:Tovt, Andrii; Bagolini, Luigi; Dvorak, Filip; Nguyen-Dung Tran; Vorokhta, Mykhailo; Beranova, Klara; Johanek, Viktor; Camellone, Matteo Farnesi; Skala, Tomas; Matolinova, Iva; Myslivecek, Josef; Fabris, Stefano; Matolin, Vladimir/titolo:Ultimate dispersion of metallic and ionic platinum on ceria/doi:10.1039%2Fc9ta00823c/rivista:Journal of Materials Chemistry A/anno:2019/pagina_da:13019/pagina_a:13028/intervallo_pagine:13019–13028/volume:7
info:cnr-pdr/source/autori:Tovt, Andrii; Bagolini, Luigi; Dvorak, Filip; Nguyen-Dung Tran; Vorokhta, Mykhailo; Beranova, Klara; Johanek, Viktor; Camellone, Matteo Farnesi; Skala, Tomas; Matolinova, Iva; Myslivecek, Josef; Fabris, Stefano; Matolin, Vladimir/titolo:Ultimate dispersion of metallic and ionic platinum on ceria/doi:10.1039%2Fc9ta00823c/rivista:Journal of Materials Chemistry A/anno:2019/pagina_da:13019/pagina_a:13028/intervallo_pagine:13019–13028/volume:7
Ceria represents a technologically indispensable reducible catalyst support. Besides the general impact on the surface chemistry, the oxygen content of the ceria surface directly influences the dispersion of ceria-supported metal nanoparticles, and t
Publikováno v:
Applied Surface Science. 465:557-563
Inverse model catalysts represent valuable systems for studying metal-oxide interactions and finite size effects in heterogeneous catalysis. To maximize the potential of model catalytic studies, high level of control over model catalyst properties is
Autor:
Vladimír Matolín, Jörg Libuda, Yaroslava Lykhach, Armin Neitzel, Yuliia Kosto, J. Kubát, Mykhailo Vorokhta, Kevin C. Prince, Nataliya Tsud, Tomáš Skála, Viktor Johánek, Josef Mysliveček, Filip Dvořák
Publikováno v:
The Journal of chemical physics. 151(20)
Iridium-based materials are among the most active bifunctional catalysts in heterogeneous catalysis and electrocatalysis. We have investigated the properties of atomically defined Ir/CeO2(111) model systems supported on Cu(111) and Ru(0001) by means
Autor:
Mykhailo Vorokhta, Matteo Farnesi Camellone, Andrii Tovt, Tomáš Skála, Viktor Johánek, Vladimír Matolín, Yoshitaka Tateyama, Vitalii Stetsovych, Josef Mysliveček, Stefano Fabris, Iva Matolínová, Filip Dvořák, Lucie Szabová
Publikováno v:
ACS catalysis 8 (2018): 4354–4363. doi:10.1021/acscatal.7b04409
info:cnr-pdr/source/autori:Dvorak F.; Szabova L.; Johanek V.; Farnesi Camellone M.; Stetsovych V.; Vorokhta M.; Tovt A.; Skala T.; Matolinova I.; Tateyama Y.; Myslivecek J.; Fabris S.; Matolin V./titolo:Bulk Hydroxylation and Effective Water Splitting by Highly Reduced Cerium Oxide: The Role of O Vacancy Coordination/doi:10.1021%2Facscatal.7b04409/rivista:ACS catalysis/anno:2018/pagina_da:4354/pagina_a:4363/intervallo_pagine:4354–4363/volume:8
info:cnr-pdr/source/autori:Dvorak F.; Szabova L.; Johanek V.; Farnesi Camellone M.; Stetsovych V.; Vorokhta M.; Tovt A.; Skala T.; Matolinova I.; Tateyama Y.; Myslivecek J.; Fabris S.; Matolin V./titolo:Bulk Hydroxylation and Effective Water Splitting by Highly Reduced Cerium Oxide: The Role of O Vacancy Coordination/doi:10.1021%2Facscatal.7b04409/rivista:ACS catalysis/anno:2018/pagina_da:4354/pagina_a:4363/intervallo_pagine:4354–4363/volume:8
Reactions of reduced cerium oxide CeOx with water are fundamental processes omnipresent in ceria-based catalysis. Using thin epitaxial films of ordered CeOx, we investigate the influence of oxygen vacancy concentration and coordination on the oxidati
Autor:
Jörg Libuda, Mykhailo Vorokhta, Klára Beranová, Tomáš Skála, Vladimír Matolín, Firas Faisal, Nataliya Tsud, Yaroslava Lykhach, Yuliia Kosto, Filip Dvořák, Kevin C. Prince, Armin Neitzel
Publikováno v:
Journal of Materials Chemistry A. 6:23078-23086
The interplay between the metal-support interaction and stability with respect to sintering has been investigated for Pt nanoparticles supported on well-ordered Co3O4(111)/Ir(100) films in UHV and under oxidizing conditions by means of synchrotron ra
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 15, Iss 5, Pp 885-889 (2017)
This article describes experimental tests to determine PM fibers Panda style responses to a thermal source with different initial temperature. The aim of this study was to determine the sensitivity of a polarization maintaining fiber to the radiating