Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Gabriela Kučerová"'
Autor:
Joachim Bansmann, Ali M. Abdel-Mageed, Shilong Chen, Corinna Fauth, Thomas Häring, Gabriela Kučerová, Yuchen Wang, R. Jürgen Behm
Publikováno v:
Catalysts, Vol 9, Iss 10, p 785 (2019)
While being highly active for the CO oxidation reaction already at low temperatures, Au/CeO2 catalysts suffer from continuous deactivation with time on stream, with the activity and deactivation depending on the initial catalyst activation procedure.
Externí odkaz:
https://doaj.org/article/fd00f12cb003430e94095d769bb410d6
Publikováno v:
Biologia.
Orchidaceae are an endangered group of plants that grow also in anthropogenic environment on initial soils. We investigated the influence of heavy metals on the populations of the orchids Epipactis atrorubens and Platanthera bifolia (Pb-Zn deposit Ja
Publikováno v:
Journal of Catalysis. 356:214-228
As part of an ongoing effort to understand the deactivation and improve the stability of metal oxide-supported Au catalysts in the low-temperature CO oxidation reaction while maintaining their high activity, we have investigated the influence of a me
Autor:
Joachim Bansmann, Ayman Abd El-Moemen, Ali M. Abdel-Mageed, Gabriela Kučerová, R. Jürgen Behm
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 220:86-90
The influence of oxidative/reductive pretreatment, oxidative re-activation and ongoing CO oxidation on the chemical/electronic properties of a 4.5 wt.% Au/CeO 2 catalyst was investigated by in operando X-ray absorption spectroscopy at the Au L III ed
Publikováno v:
ACS Catalysis. 7:6471-6484
Operando XAS measurements in the near (XANES) and the extended (EXAFS) Au LIII edge as well as in situ diffuse reflectance FTIR (DRIFTS) spectroscopy were employed in combination with kinetic measurements in a further attempt to identify the nature o
Publikováno v:
Chemical Papers. 72:139-147
The current work is focused on exploring the effect of buffer cation type and its concentration on retention of amino acids, dipeptides and their blocked analogues on two stationary phases, i.e., bare silica and amide-based in hydrophilic interaction
Publikováno v:
Journal of Chromatography A. 1467:356-362
Various amino acids, dipeptides and their isomers were (enantio)separated using sulfobutylether-β-cyclodextrin as a chiral selector. Two different approaches were employed: first, dynamic coating of sulfobutylether-β-cyclodextrin onto a strong anio
Autor:
Ayman Abd El-Moemen, R. Jürgen Behm, Magdalena Parlinska-Wojtan, Joachim Bansmann, Ali M. Abdel-Mageed, Gabriela Kučerová
Publikováno v:
Journal of Catalysis. 341:160-179
The influence of the pretreatment on the activity and deactivation behavior of a high surface area 4.5 wt.% Au/CeO 2 catalyst during low temperature CO oxidation reaction ( T react = 80 °C) was studied in a multi-technique approach. Furthermore, the
Autor:
Květa Kalíková, Martin Popr, Gabriela Kučerová, Pavel Coufal, Eva Tesařová, Hana Procházková, Jindřich Jindřich
Publikováno v:
Chromatographia. 79:529-536
Cyclodextrin-based stationary phases are frequently used for separation of various isomers. The main reason for applying new cyclodextrin (CD) derivatives for HPLC stationary phases is the improvement of separation efficiency. This paper introduces a
Autor:
Bronislava Lalinská-Voleková, Ľubomír Jurkovič, Jaroslav Vozár, Roman Tóth, Peter Šottník, Edgar Hiller, Gabriela Kučerová
Publikováno v:
Mine Water and the Environment. 35:447-461
This work describes the geochemistry, mineralogy, and mobility of selected metals (Cu, Pb, Zn) and metalloids (As, Sb) in a tailings impoundment in the village of Slovinky (eastern Slovakia). The tailings were covered unevenly by slag from processing