Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Károly Lázár"'
Autor:
Marta Stucchi, Alessandro Vomeri, Sándor Stichleutner, Károly Lázár, Emanuela Pitzalis, Claudio Evangelisti, Laura Prati
Publikováno v:
Chemistry, Vol 5, Iss 3, Pp 1560-1576 (2023)
Acetone-stabilized Au- and Sn-solvated metal atoms (SMAs) were used as to obtain Au- and AuSn-supported catalysts by simple impregnation on a reducible (TiO2) and a non-reducible (Al2O3) metal-oxide. Their catalytic behaviour was investigated for cyc
Externí odkaz:
https://doaj.org/article/3bfd237c01634472b488e1b874d2e529
Publikováno v:
Molecules, Vol 29, Iss 4, p 890 (2024)
We have described a new route for the preparation of partially methylated polygalacturonic acid containing hydrolyzed (acidic) and unhydrolyzed (methyl esterified) carboxylate groups in a ratio of 1:1 (PGA, compound 1), and one of its basic FeIII—s
Externí odkaz:
https://doaj.org/article/f56f1883e7ac4783a3d6d1091b5feb87
Publikováno v:
Croatica Chemica Acta, Vol 88, Iss 4, Pp 413-419 (2015)
Formation of iron oxyhydroxide aerogel and xerogel by hydrolysis of FeCl3 ∙ 6 H2O was studied in organic media using water available solely from the starting iron salt. Ethylene glycol (EGLY), dimethyl sulfoxide (DMSO) and dimethyl formamide (DMFA)
Externí odkaz:
https://doaj.org/article/32ebd13c3d754fccb85565c604b42dfc
Publikováno v:
Croatica Chemica Acta, Vol 88, Iss 2, Pp 171-178 (2015)
A novel method for preparation of Fe2+/Fe3+ substituted mullite is described. Aluminosilicate gels are applied as precursors instead of crystalline aluminosilicates as used in other common syntheses. The process is composed of three stages. First, ir
Externí odkaz:
https://doaj.org/article/35154b8c6ef744e69c842dffebe19329
Publikováno v:
Catalysis Today. 418:114109
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4df82017b153560a6443865fa74ac862
https://doi.org/10.1016/j.cattod.2023.114109
https://doi.org/10.1016/j.cattod.2023.114109
Autor:
Károly Lázár, Margarita Popova, Ágnes Szegedi, Silviya Boycheva, Denitza Zgureva, Hristina Lazarova
Publikováno v:
Catalysis Today. 357:518-525
Zeolite NaX was prepared by conversion of coal ash residue, collected from the electrostatic precipitator of a thermal power plant supplied with lignite coal, by treatment with alkaline solution. Three different synthesis procedures, namely hydrother
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75d4286ecdde8544033792a5a01da05c
https://doi.org/10.1016/j.cattod.2019.06.070
https://doi.org/10.1016/j.cattod.2019.06.070
Autor:
Zoltán Schay, Botao Qiao, Andrea Beck, Junhu Wang, Shaofeng Liu, György Sáfrán, Tianbo Li, Károly Lázár, Gergely Nagy
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 128:71-95
Monodisperse gold particles (ca. 2 nm) were prepared and deposited on various supports (SiO2, Al2O3, HAP, MgAl2O4 and MgO). The acid/base properties of supports were characterized by NH3 and CO2 sorption. The size of the gold nanoparticles spans in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1faf2fdfb594a0fbe437b5a1d0ef16df
https://doi.org/10.1007/s11144-019-01615-8
https://doi.org/10.1007/s11144-019-01615-8
Autor:
Károly Lázár, Anna Mária Keszler, Fanni Fekete, Li Zhibin, Anna Jánosity, László Kótai, Imre Miklós Szilágyi
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 134:1863-1872
In this study, the goal was to find lower temperature for separating the Zn and Fe content of ZnFe2O4 by sulfation reaction than previously achieved and to study the various reaction steps of sulfation. Hence, the reaction of ZnFe2O4 with Mohr’s sa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f996ae293351336c86a42dc4b4213021
https://doi.org/10.1007/s10973-018-7849-8
https://doi.org/10.1007/s10973-018-7849-8
Autor:
Lajos K. Varga, S. Stichleutner, László Szabó, Viktória Kovács Kis, Ildikó Harsányi, Károly Lázár, Tamás Fekete, Zoltán Klencsár
Publikováno v:
Journal of Alloys and Compounds. 763:759-770
Electric explosion (EEW) of iron and iron alloy wires (Fe, FeCrNi-ASI 304, and FeNiCo-Kovar) was performed in various liquid media (water, paraffin oil, ethylene glycol, siloxane) by injecting 1.2 × 10−18 J/atom energy. Products were collected sep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79acf0554703af39715b465602a17f72
https://doi.org/10.1016/j.jallcom.2018.05.326
https://doi.org/10.1016/j.jallcom.2018.05.326
Autor:
Georgi Momekov, Judith Mihály, Ivalina Trendafilova, Neli Koseva, L. F. Kiss, Denitsa Momekova, Margarita Popova, Károly Lázár, Ágnes Szegedi
Publikováno v:
Microporous and Mesoporous Materials. 263:96-105
Magnetic nanoporous silica particles (MNS) with spherical morphology and 100 nm particle with advanced characteristics suitable for nanomedicine purposes were synthesized. The obtained nanoparticles were modified with SO3H groups in a two-step post s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c1718fffa2b915718f2bd565e8b84de
https://doi.org/10.1016/j.micromeso.2017.12.005
https://doi.org/10.1016/j.micromeso.2017.12.005