Gomez, Luz Stella

Link to this page

Authority KeyName Variants
fd2c9167-1d49-466c-8777-d727a24b845b
  • Gomez, Luz Stella (1)
Projects
No records found.

Author's Bibliography

Aerosol synthesis and characterization of nanostructured particles of Y3Al5O12:Ce3+ and Y2O3:Eu3+

Marinković, Katarina; Veselinović, Ljiljana; Gomez, Luz Stella; Rabanal, Maria Eugenia; Mančić, Lidija; Milošević, Olivera

(Belgrade : Association of the Chemical Engineers of Serbia, 2007)

TY  - JOUR
AU  - Marinković, Katarina
AU  - Veselinović, Ljiljana
AU  - Gomez, Luz Stella
AU  - Rabanal, Maria Eugenia
AU  - Mančić, Lidija
AU  - Milošević, Olivera
PY  - 2007
UR  - https://dais.sanu.ac.rs/123456789/15270
AB  - Nanostructured YAG:Ce3+ and Y2O3:Eu3+ were synthesized by low temperature (320°C) aerosol synthesis-LTAS and high temperature (900°C) aerosol synthesis-HTAS, respectively. The synthesis included aerosol generation from a nitrate precursor solution by an ultrasonic atomizer (1.3 MHz). The obtained aerosol was introduced into a tubular flow reactor, using air as the carrier gas, where successively, on a droplet level, evaporation/drying, precipitation and thermolysis occurred. The obtained powders were collected and thermally treated at different temperatures (900-1200°C). The phase development and the morphology were investigated by the X-ray powder diffraction method (XRPD) and scanning electron microscopy combined with energy dispersive spectrometry (SEM/EDS). Structural refinement was performed using the Rietveld method with the Fullprof and Koalariet programs. The average crystallite size for the Y2O3:Eu system was calculated using the Profit program. It was shown that 89 wt.% of Y3Ai5Oi2:Ce was obtained by annealing (1000°C/6 h) the as prepared, amorphous powder, synthesized by the low temperature aerosol method (LTAS). High temperature spray pyrolysis (HTAS) at 900°C led to the formation of the targeted cubic phase of Y2O3:Eu3+. The microstructural parameters of the asprepared samples of the Y2O3:Eu3+ system indicate the formation of nanostructures with crystallite size smallest than 20 nm. The substitution of luminescent centers (Ce3+, Eu3+) into a host lattice (YAG, Y2O3, respectively) was confirmed by changes in the crystal lattice parameters. Also, it was shown in both systems that good morphological characteristics (non-a­gglomerated, spherical, submicron particles) were obtained enabling improved luminescent characteristics.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Aerosol synthesis and characterization of nanostructured particles of Y3Al5O12:Ce3+ and Y2O3:Eu3+
SP  - 101
EP  - 108
VL  - 61
IS  - 3
DO  - 10.2298/HEMIND0703101M
UR  - https://hdl.handle.net/21.15107/rcub_dais_15270
ER  - 
@article{
author = "Marinković, Katarina and Veselinović, Ljiljana and Gomez, Luz Stella and Rabanal, Maria Eugenia and Mančić, Lidija and Milošević, Olivera",
year = "2007",
abstract = "Nanostructured YAG:Ce3+ and Y2O3:Eu3+ were synthesized by low temperature (320°C) aerosol synthesis-LTAS and high temperature (900°C) aerosol synthesis-HTAS, respectively. The synthesis included aerosol generation from a nitrate precursor solution by an ultrasonic atomizer (1.3 MHz). The obtained aerosol was introduced into a tubular flow reactor, using air as the carrier gas, where successively, on a droplet level, evaporation/drying, precipitation and thermolysis occurred. The obtained powders were collected and thermally treated at different temperatures (900-1200°C). The phase development and the morphology were investigated by the X-ray powder diffraction method (XRPD) and scanning electron microscopy combined with energy dispersive spectrometry (SEM/EDS). Structural refinement was performed using the Rietveld method with the Fullprof and Koalariet programs. The average crystallite size for the Y2O3:Eu system was calculated using the Profit program. It was shown that 89 wt.% of Y3Ai5Oi2:Ce was obtained by annealing (1000°C/6 h) the as prepared, amorphous powder, synthesized by the low temperature aerosol method (LTAS). High temperature spray pyrolysis (HTAS) at 900°C led to the formation of the targeted cubic phase of Y2O3:Eu3+. The microstructural parameters of the asprepared samples of the Y2O3:Eu3+ system indicate the formation of nanostructures with crystallite size smallest than 20 nm. The substitution of luminescent centers (Ce3+, Eu3+) into a host lattice (YAG, Y2O3, respectively) was confirmed by changes in the crystal lattice parameters. Also, it was shown in both systems that good morphological characteristics (non-a­gglomerated, spherical, submicron particles) were obtained enabling improved luminescent characteristics.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Aerosol synthesis and characterization of nanostructured particles of Y3Al5O12:Ce3+ and Y2O3:Eu3+",
pages = "101-108",
volume = "61",
number = "3",
doi = "10.2298/HEMIND0703101M",
url = "https://hdl.handle.net/21.15107/rcub_dais_15270"
}
Marinković, K., Veselinović, L., Gomez, L. S., Rabanal, M. E., Mančić, L.,& Milošević, O.. (2007). Aerosol synthesis and characterization of nanostructured particles of Y3Al5O12:Ce3+ and Y2O3:Eu3+. in Hemijska industrija
Belgrade : Association of the Chemical Engineers of Serbia., 61(3), 101-108.
https://doi.org/10.2298/HEMIND0703101M
https://hdl.handle.net/21.15107/rcub_dais_15270
Marinković K, Veselinović L, Gomez LS, Rabanal ME, Mančić L, Milošević O. Aerosol synthesis and characterization of nanostructured particles of Y3Al5O12:Ce3+ and Y2O3:Eu3+. in Hemijska industrija. 2007;61(3):101-108.
doi:10.2298/HEMIND0703101M
https://hdl.handle.net/21.15107/rcub_dais_15270 .
Marinković, Katarina, Veselinović, Ljiljana, Gomez, Luz Stella, Rabanal, Maria Eugenia, Mančić, Lidija, Milošević, Olivera, "Aerosol synthesis and characterization of nanostructured particles of Y3Al5O12:Ce3+ and Y2O3:Eu3+" in Hemijska industrija, 61, no. 3 (2007):101-108,
https://doi.org/10.2298/HEMIND0703101M .,
https://hdl.handle.net/21.15107/rcub_dais_15270 .