Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Oana Stefanescu"'
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 138:1863-1870
The aim of the present study was to prepare nanocomposites with different CoCr2O4 content (20%, 50%, and 80% CoCr2O4/SiO2 mass%) starting from Co(II) carboxylate and ammonium dichromate using a modified sol–gel method and to evaluate the final prod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::552f3a32faf11f38d103fdaf393ab6fd
https://doi.org/10.1007/s10973-019-08783-8
https://doi.org/10.1007/s10973-019-08783-8
Autor:
Anca Dragomirescu, Titus Vlase, Cezara Maria Muresan, Mihaela Cristea, Bianca Baul, Bożena Karolewicz, Dana Velimirovici, Mircea Stefanescu, Gabriela Vlase, Oana Stefanescu, Ionuţ Ledeţi, Dan-Simion Cipu, Adriana Ledeţi
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 138:2799-2806
This paper deals with the study of compatibility between antihyperlipidemic agent atorvastatin calcium trihydrate (ATV) and eight pharmaceutical excipients used in the development of solid dosage forms, namely citric acid, anhydrous lactose, magnesiu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5518f1083ca6ce305acad711684e6f2c
https://doi.org/10.1007/s10973-019-08798-1
https://doi.org/10.1007/s10973-019-08798-1
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 138:1887-1894
This study reports the preparation and characterization of CuCr2O4/SiO2 and Cu2Cr2O4/SiO2 nanocomposites. In order to obtain 50 mass% CuCr2O4/SiO2 and Cu2Cr2O4/SiO2 nanocomposites, we have used a method based on the thermal decomposition of the precu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ab8742a06aaa39118ac765f2992b8dc
https://doi.org/10.1007/s10973-019-08479-z
https://doi.org/10.1007/s10973-019-08479-z
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 131:137-144
CuCr2O4 spinel powders were synthesized starting from different chromium sources, namely (i) chromium oxide (α-Cr2O3) and (ii) ammonium dichromate ((NH4)2Cr2O7). The copper source was a Cu(II) carboxylate-type complex. The Cu(II) carboxylate complex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44aa7b423cfa1c9ce5b83b2134710a65
https://doi.org/10.1007/s10973-017-6328-y
https://doi.org/10.1007/s10973-017-6328-y
Publikováno v:
Journal of Magnetism and Magnetic Materials. 393:92-98
Nanoparticles of cobalt–zinc ferrite Co 1− x Zn x Fe 2 O 4 with x varying from 0 to 1.0 were prepared by a new method, the thermal decomposition of carboxylates of Fe(III), Co(II) and Zn(II). The obtained carboxylate precursor was characterized b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02f5437cd9d23612460004f147c7dbe1
https://doi.org/10.1016/j.jmmm.2015.05.048
https://doi.org/10.1016/j.jmmm.2015.05.048
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 121:135-144
Nickel oxides nanoparticles were successfully obtained using a new sol–gel method approach which is based on the thermal decomposition of some carboxylate compounds formed within the pores of hybrid tetraethyl orthosilicate–diol gels. The Ni(II)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e24eb96b40a2326706491b414dde600
https://doi.org/10.1007/s10973-015-4485-4
https://doi.org/10.1007/s10973-015-4485-4
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 113:1345-1354
This paper presents a facile and rapid synthesis route of metallic Ni and Co nanocrystallites at ~150 °C in the mixture composed of the corresponding metal nitrates and 1,3-propanediol, as reducing agent. The metal oxides NiO, CoO, Co3O4 nanocrystal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc59e5ab067c73e56edd61877da49cf0
https://doi.org/10.1007/s10973-013-2951-4
https://doi.org/10.1007/s10973-013-2951-4
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 113:1245-1253
Nanocomposites of the type 30 % CuFe2O4/70 % SiO2 were synthesized using the modified sol–gel method starting from tetraethylorthosilicate, metal nitrates (Fe(NO3)3·9H2O, Cu(NO3)2·3H2O) and the diol: 1,3-propane diol. The obtained hybrid gel, whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35185c0afed99aefdc9814d633361387
https://doi.org/10.1007/s10973-013-2938-1
https://doi.org/10.1007/s10973-013-2938-1
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 112:447-453
The study reports the preparation of CoFe2O4/SiO2 nanocomposites by a new modified sol–gel method starting from cobalt nitrate, iron nitrate, and diols: 1,2-ethanediol (EG), 1,3-propanediol (1,3PG), and tetraethylorthosilicate (TEOS), for final com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0be1401c6c0373bad5b7ec14a64497a8
https://doi.org/10.1007/s10973-012-2704-9
https://doi.org/10.1007/s10973-012-2704-9
Autor:
Oana Stefanescu, Mirela Barbu, Lucian Barbu-Tudoran, Marcela Stoia, Mircea Stefanescu, Gabriela Vlase
Publikováno v:
Journal of Sol-Gel Science and Technology. 62:31-40
This paper presents a study regarding the formation of hybrid gels starting from tetraethyl orthosilicate (TEOS), polyvinyl alcohol (PVA) and 1,3-propanediol (PD) and their thermal evolution to mesoporous silica matrices. The possibility of obtaining
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48f353c0b1d5badcdb73d827b8b1c62f
https://doi.org/10.1007/s10971-012-2679-9
https://doi.org/10.1007/s10971-012-2679-9