Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Rodica, Alexandrescu"'
Autor:
Fleaca, Claudiu Teodor, Morjan, Ion, Rodica, Alexandrescu, Dumitrache, Florian, Soare, Iuliana, Gavrila-Florescu, Lavinia, Sandu, Ion, Dutu, Elena, Le Normand, François, Faerber, Jacques
Publikováno v:
In Physica E: Low-dimensional Systems and Nanostructures March 2012 44(6):1024-1027
Autor:
Florian Dumitrache, Victor Kuncser, I.P. Morjan, M. Popa, Catalin Luculescu, M. Scarisoreanu, Eugeniu Vasile, George Filoti, A.-M. Niculescu, Virginia Danciu, Rodica Alexandrescu, I. Morjan, R. Birjega, Claudiu Fleaca
Publikováno v:
Applied Surface Science. 302:198-204
We report the continuous, single step synthesis of titania/iron-based magnetic nanocomposites in a single step using gas-phase laser pyrolysis technique by separately and simultaneously introducing the precursors (together with C2H4 sensitizer) in th
Autor:
M. Scarisoreanu, Rodica Alexandrescu, R. Birjega, Florian Dumitrache, Gabriel Prodan, I. Morjan, Claudiu Fleaca, I.P. Morjan, A. Barbut
Publikováno v:
Applied Surface Science. 278:305-312
Polymer-based nanocomposites provided with inorganic cores were simultaneously manufactured by the single-step laser pyrolysis. A comparative study was performed on two types of nanocomposites, starting from two different systems: TiO2/methyl methacr
Autor:
Elena Dutu, Eugeniu Vasile, M. Scarisoreanu, Virginia Danciu, Catalin Luculescu, E. Popovici, R. Birjega, Nathalie Herlin-Boime, I. Morjan, Rodica Alexandrescu
Publikováno v:
Applied Surface Science. 278:295-300
Carbon- coated TiO2 nanoparticles were prepared by the IR laser pyrolysis technique. A sensitized mixture of TiCl4 and alternatively C2H4 and C2H4/C2H2 mixtures were used as titanium and carbon precursors, respectively. Optical, morphological and str
Autor:
Rodica Alexandrescu, Ion Morjan, Eugeniu Vasile, Claudiu Fleaca, Victor Kuncser, A.-M. Niculescu, Florian Dumitrache, Catalin Luculescu
Publikováno v:
Applied Surface Science
We report the synthesis of novel nanocomposites based on Fe@C nanoparticles obtained from Fe(CO) 5 and C 2 H 4 /H 2 by laser pyrolysis technique using a three nozzles injector. The αFe–Fe x C y @C particles (below 24 nm diameter) were first functi
Autor:
Rodica Alexandrescu, George Filoti, I. Morjan, Victor Kuncser, Petru Palade, Gabriel Schinteie, Florian Dumitrache
Publikováno v:
Journal of Alloys and Compounds. 564:27-34
New nanometric systems were produced by using specific parameters of the laser pyrolysis process. Relevant results related to the magnetic behavior of the samples were obtained via SQUID magnetometry and Mossbauer spectroscopy, the data being corrobo
Autor:
Florian Dumitrache, M. Scarisoreanu, Eugeniu Vasile, Ion Morjan, Rodica Alexandrescu, Claudiu Fleaca, E. Popovici, A. Barbut, Elena Dutu, Catalin Luculescu, R. Barjega
Publikováno v:
Applied Surface Science. 258:9326-9332
The laser synthesis of nanoparticles starting from liquid precursors is particularly suitable as synthesis technique for obtaining nanoparticles. In the present work the laser pyrolysis is performed in a novel setup where the liquid precursor is brou
Autor:
Elena Dutu, I. Morjan, Florian Dumitrache, Victor Ciupina, Catalin Luculescu, Eugeniu Vasile, Claudiu Fleaca, R. Birjega, Rodica Alexandrescu, Victor Kuncser, Ion Morjan, George Filoti, M. Scarisoreanu
Publikováno v:
Applied Surface Science. 258:9421-9426
Intermetallic Fe–Sn and nanocrystalline metallic Sn nanoparticles have been successfully synthesized from organic precursors using the laser pyrolysis technique with ethylene as sensitizer. Nano-structured Sn (single phase) was prepared by the pyro
Autor:
Florian Dumitrache, Claudiu Fleaca, I. Morjan, Rodica Alexandrescu, Gabriel Prodan, Catalin Luculescu, Ioan Stamatin, S. Birjega, I. Sandu
Publikováno v:
Applied Surface Science
We report here the high-yield continuous synthesis of carbon nanoparticles with and without Fe content by laser pyrolysis technique. The laser beam decomposes (via C 2 H 4 sensitizer) the Fe(CO) 5 as Fe clusters which absorb themselves the laser radi
Autor:
Claudiu Fleaca, Ladislau Vekas, Victor Kuncser, Rodica Alexandrescu, R. Birjega, Florian Dumitrache, Nicolae Popa, Gabriel Prodan, Catalin Luculescu, I. Soare, Elena Dutu, Ion Morjan, George Filoti
Publikováno v:
Advanced Powder Technology. 23:88-96
Iron–carbon nanocomposites have gained interest due to their new engineering and biomedical applications. Carbon coated iron nanoparticles (Fe@C) were obtained continuously and in a single step using the laser pyrolysis method. The continuous wave