Zobrazeno 1 - 10
of 164
pro vyhledávání: '"György Pokol"'
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 1, p 846 (2023)
In this review, we aim to present new concepts for the revisited separation of enantiomers from racemic compounds and a protocol worth to be followed in designing the preparation of pure enantiomers. We have taken into account not only the influence
Externí odkaz:
https://doaj.org/article/eeab60de03fc48f6864294ac2707e2a2
Autor:
Teodóra Nagyné-Kovács, Levente Studnicka, István Endre Lukács, Krisztina László, Pawel Pasierb, Imre Miklós Szilágyi, György Pokol
Publikováno v:
Nanomaterials, Vol 10, Iss 5, p 891 (2020)
Effects of different reaction parameters in the hydrothermal synthesis of molybdenum oxides (MoO3) were investigated and monoclinic (β-) MoO3 was prepared hydrothermally for the first time. Various temperatures (90/210 °C, and as a novelty 240 °C)
Externí odkaz:
https://doaj.org/article/6437a99e2b1146088db3498209a062b0
Autor:
Teodóra Nagyné-Kovács, Gubakhanim Shahnazarova, István Endre Lukács, Anna Szabó, Klara Hernadi, Tamás Igricz, Krisztina László, Imre M. Szilágyi, György Pokol
Publikováno v:
Materials, Vol 12, Iss 11, p 1728 (2019)
In this study, Bi2WO6 was prepared by the hydrothermal method. The effects of reaction temperature (150/170/200 °C) and reaction time (6/12/24 h) were investigated. The role of strongly acidic pH (1 >) and the full range between 0.3 and 13.5 were st
Externí odkaz:
https://doaj.org/article/aa33b2dccfbb448e8ca65ef87f2e7c7a
Publikováno v:
International journal of molecular sciences. 24(1)
In this review, we aim to present new concepts for the revisited separation of enantiomers from racemic compounds and a protocol worth to be followed in designing the preparation of pure enantiomers. We have taken into account not only the influence
Autor:
Valentin S. Teodorescu, Irina Atkinson, György Pokol, Imre Miklós Szilágyi, Nicoleta Apostol, Adriana Rusu, Economics, H Budapest, Műegyetem rakpart , Hungary, Luminita Predoana, Jeanina Pandele-Cusu, Maria Zaharescu
Publikováno v:
Revue Roumaine de Chimie. 66:219-229
The thermal behavior of Cu-doped TiO2 gels obtained by the sol-gel method was investigated by thermogravimetric and differential thermal analysis (TG/DTG/DTA) and differential scanning calorimetry (DSC) measurements. The comparative investigation of
Autor:
Simona Petrescu, Luminita Predoana, Irina Atkinson, Jeanina Pandele-Cusu, György Pokol, Vincent Otieno Odhiambo, Adriana Rusu, Maria Zaharescu, Imre Miklós Szilágyi, Dániel Attila Karaj, László Péter Bakos, Teodóra Nagyné Kovács
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 143:2893-2900
In the literature data, several papers reported the synthesis by various chemical or physical methods of the SrCu2O2 (SCO) having possible applications in thermoelectric or completely electronic devices such as solar cells, liquid crystal displays an
Autor:
Monika Molnar, István Endre Lukács, Boglárka Mészáros, Teodóra Nagyné-Kovács, Mária Tolner, György Pokol, Imre Miklós Szilágyi
Publikováno v:
Periodica Polytechnica Chemical Engineering. 64:54-60
In this study, we prepared hydroxyapatite (HAP) samples using hydrothermal method. We investigated the effect of reaction conditions such as phosphate excess applying 1.49 and 1.67 (as stoichiometric) Ca/P ratio, pH (9/ 10/ 11/ 12) and time (4/ 8/ 12
Autor:
Imre Miklós Szilágyi, István Endre Lukács, Arshak Szenkovits, Teodóra Nagyné-Kovács, Adrienn Malik, György Pokol
Publikováno v:
Journal of Nanoscience and Nanotechnology. 19:498-501
In this study the effects of various anions (SO2-₄, ClO-₄ and PO3-₄) were investigated on the hydrothermal treatment of WO₃ from Na₂WO₄ and HCl at 180 and 200 °C. The products were analyzed by XRD and SEM. With the usage of SO2-₄ the o
Autor:
Teodóra Nagyné-Kovács, István Endre Lukács, Levente Studnicka, György Pokol, Mária Tolner, Gabriella Spengler, Annamária Kincses, Imre Miklós Szilágyi, Monika Molnar
Publikováno v:
Ceramics International. 44:22976-22982
This study presents the preparation of pure, Sr and Mg-doped hydroxyapatite (HAP) by precipitation. Sr-doped HAPs (SrHAPs) and Mg-doped HAPs (MgHAPs) were fabricated with Sr molar ratio of 2, 4, 6, 8, 12% and Mg molar ratio of 2, 4%, respectively. Ca
Autor:
Tamás Igricz, Fanni Gáber, Zsolt Fogarassy, Teodóra Nagyné Kovács, Imre Miklós Szilágyi, István Endre Lukács, György Pokol, Katalin Balázsi, Dávidné Nagy
Publikováno v:
Materials Research Bulletin. 95:563-569
This study reports about the influence of sulfate and iron containing additives on the hydrothermal reaction of sodium tungstate (Na2WO4) and hydrochloric acid (HCl) through which we managed to obtain FeWO4 nanosheets for the first time. The synthesi