Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Jan Vaculík"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract Understanding the adsorption behavior of base probes in aluminosilicates and its relationship to the intrinsic acidity of Brønsted acid sites (BAS) is essential for the catalytic applications of these materials. In this study, we investigat
Externí odkaz:
https://doaj.org/article/90039b016e4647a9a7c08ac3711addba
Publikováno v:
Applied Sciences, Vol 8, Iss 2, p 182 (2018)
Uninterruptible power supplies (UPS), represented by lead-acid batteries, play an important role in various kinds of industries. They protect industrial technologies from being damaged by dangerous interruptions of an electric power supply. Advanced
Externí odkaz:
https://doaj.org/article/c2f212e96ff9463e8fbf0973d6aceca2
Autor:
Kenneth E S Poole, Graham M Treece, Paul M Mayhew, Jan Vaculík, Pavel Dungl, Martin Horák, Jan J Štěpán, Andrew H Gee
Publikováno v:
PLoS ONE, Vol 7, Iss 6, p e38466 (2012)
BackgroundIndividuals with osteoporosis are predisposed to hip fracture during trips, stumbles or falls, but half of all hip fractures occur in those without generalised osteoporosis. By analysing ordinary clinical CT scans using a novel cortical thi
Externí odkaz:
https://doaj.org/article/cf763ed8c66b49be8177907d5c8ba871
Autor:
Lukáš Grajciar, Jiří Čejka, Roman Bulánek, Jan Přech, Petr Nachtigall, Martin Kubů, Ho Viet Thang, Jan Vaculík
Publikováno v:
Microporous and Mesoporous Materials. 282:121-132
The zeolite activity in processes driven by Bronsted acid sites is determined by the distribution of the protons in the zeolite and strength of their interaction with the framework. This study aims to assess how much the transformation from three-dim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fa9657a6c5b879f5919052104f9215d
https://doi.org/10.1016/j.micromeso.2019.03.033
https://doi.org/10.1016/j.micromeso.2019.03.033
Publikováno v:
Applied Catalysis A: General. 575:180-186
Acid site strength in MWW and MFI zeolites was investigated by isotopic exchange reaction between deuterated hydroxyl groups of zeolites and ethane molecules. The course of the reaction was monitored by FT-IR spectroscopy through time changes of inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3b74586ba69300830b1c16d65013ac9
https://doi.org/10.1016/j.apcata.2019.02.024
https://doi.org/10.1016/j.apcata.2019.02.024
Publikováno v:
Microporous and Mesoporous Materials. 341:112052
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e44dcbafb8cb6844438377866054427
https://doi.org/10.1016/j.micromeso.2022.112052
https://doi.org/10.1016/j.micromeso.2022.112052
Autor:
Roman Bulánek, Jan Vaculík, Ondřej Veselý, Jan Přech, Martin Kubů, Miroslav Rubeš, Ota Bludský
Publikováno v:
Microporous and Mesoporous Materials. 332:111717
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29111baf63e8addfaab2e4925f43fc24
https://doi.org/10.1016/j.micromeso.2022.111717
https://doi.org/10.1016/j.micromeso.2022.111717
Publikováno v:
Catalysts; Volume 12; Issue 1; Pages: 51
Catalysts, Vol 12, Iss 51, p 51 (2022)
Catalysts, Vol 12, Iss 51, p 51 (2022)
The catalytic activity of zeolites is often related to their acid–base properties. In this work, the relationship between the value of apparent activation energy of ethanol dehydration, measured in a fixed bed reactor and by means of a temperature-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21a89a3893196081694e305aeb21de5a
https://doi.org/10.3390/catal12010051
https://doi.org/10.3390/catal12010051
Autor:
Roman Bulánek, Gérard Delahay, Mourad Mhamdi, Faouzi Ayari, Abdelhamid Ghorbel, Safaa Essid, Jan Vaculík
Publikováno v:
Solid State Sciences
Solid State Sciences, Elsevier, 2019, 93, pp.13-23. ⟨10.1016/j.solidstatesciences.2019.04.008⟩
Solid State Sciences, Elsevier, 2019, 93, pp.13-23. ⟨10.1016/j.solidstatesciences.2019.04.008⟩
International audience; Ethane ammoxidation into acetonitrile (AN) was successfully catalyzed by Co/BEA solids issued from improved preparation methods. The catalyst issued from the impregnation of [Co(NH3)6]2+ complex into BEA zeolite is very active
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97ec69a18d1fb8a5168e490609684508
https://hal.archives-ouvertes.fr/hal-02153155
https://hal.archives-ouvertes.fr/hal-02153155
Publikováno v:
Microporous and Mesoporous Materials. 317:110994
H-MOR zeolites with different Si/Al ratios were investigated by the combined use of FT-IR spectroscopy, calorimetry, and periodic DFT calculations. Our analysis of 14 different Bronsted acid sites (BAS) was carried out with the ω/r correlation metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b7bf3fef2b97b76b22a243c1eb3bdfb
https://doi.org/10.1016/j.micromeso.2021.110994
https://doi.org/10.1016/j.micromeso.2021.110994