A. von Humboldt Foundation

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A. von Humboldt Foundation

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Studies on Structural and Morphological Properties of Multidoped Ceria Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2-delta (x=0.2) as Solid Solutions

Stojmenović, Marija; Pagnacco, Maja C.; Dodevski, Vladimir; Gulicovski, Jelena J.; Zunic, Milan; Bošković, Snežana B.

(2016)

TY  - JOUR
AU  - Stojmenović, Marija
AU  - Pagnacco, Maja C.
AU  - Dodevski, Vladimir
AU  - Gulicovski, Jelena J.
AU  - Zunic, Milan
AU  - Bošković, Snežana B.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1083
AB  - The nanopowdery solid solutions of multidoped ceria Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2 (delta) (x = 0.2) with the fluorite type crystal structure of CeO2 were synthesized for the first time. Two synthesis procedures were applied: the modified glycine-nitrate procedure (MGNP method) and room temperature self-propagating reaction (SPRT method). All nanopowders were characterized by XRPD analysis, Raman spectroscopy, low temperature nitrogen physisorption, TEM, and SEM methods. According to the XRPD and Raman spectroscopy results, single phase solid solutions of fluorite structure were evidenced regardless of the number of dopants and synthesis procedure. Both XRPD and TEM were analyses evidenced nanometer particle dimensions. The SPRT method results in obtaining sample with higher specific surface area, smaller crystallite and particles sizes, and the same values of the lattice parameter in comparison to pure CeO2. Raman spectroscopy was confirmed to the oxygen vacancies introduced into the ceria lattice when Ce4+ ions were replaced with cations (dopants) of lower valence state (3+), which may indicate the potential improvement of ionic conductivity. Additionally, the presence of oxygen vacancies in the lattice ceria, as well as very developed grain boundaries, gives a new possibility for potential application of obtained nanopowders in the area of room temperature ferromagnetism as spintronics.
T2  - Journal of Spectroscopy
T1  - Studies on Structural and Morphological Properties of Multidoped Ceria Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2-delta (x=0.2) as Solid Solutions
SP  - 1
EP  - 9
DO  - 10.1155/2016/5184542
ER  - 
@article{
author = "Stojmenović, Marija and Pagnacco, Maja C. and Dodevski, Vladimir and Gulicovski, Jelena J. and Zunic, Milan and Bošković, Snežana B.",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1083",
abstract = "The nanopowdery solid solutions of multidoped ceria Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2 (delta) (x = 0.2) with the fluorite type crystal structure of CeO2 were synthesized for the first time. Two synthesis procedures were applied: the modified glycine-nitrate procedure (MGNP method) and room temperature self-propagating reaction (SPRT method). All nanopowders were characterized by XRPD analysis, Raman spectroscopy, low temperature nitrogen physisorption, TEM, and SEM methods. According to the XRPD and Raman spectroscopy results, single phase solid solutions of fluorite structure were evidenced regardless of the number of dopants and synthesis procedure. Both XRPD and TEM were analyses evidenced nanometer particle dimensions. The SPRT method results in obtaining sample with higher specific surface area, smaller crystallite and particles sizes, and the same values of the lattice parameter in comparison to pure CeO2. Raman spectroscopy was confirmed to the oxygen vacancies introduced into the ceria lattice when Ce4+ ions were replaced with cations (dopants) of lower valence state (3+), which may indicate the potential improvement of ionic conductivity. Additionally, the presence of oxygen vacancies in the lattice ceria, as well as very developed grain boundaries, gives a new possibility for potential application of obtained nanopowders in the area of room temperature ferromagnetism as spintronics.",
journal = "Journal of Spectroscopy",
title = "Studies on Structural and Morphological Properties of Multidoped Ceria Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2-delta (x=0.2) as Solid Solutions",
pages = "1-9",
doi = "10.1155/2016/5184542"
}
Stojmenović, M., Pagnacco, M. C., Dodevski, V., Gulicovski, J. J., Zunic, M.,& Bošković, S. B. (2016). Studies on Structural and Morphological Properties of Multidoped Ceria Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2-delta (x=0.2) as Solid Solutions.
Journal of Spectroscopy, 1-9.
https://doi.org/10.1155/2016/5184542
Stojmenović M, Pagnacco MC, Dodevski V, Gulicovski JJ, Zunic M, Bošković SB. Studies on Structural and Morphological Properties of Multidoped Ceria Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2-delta (x=0.2) as Solid Solutions. Journal of Spectroscopy. 2016;:1-9
Stojmenović Marija, Pagnacco Maja C., Dodevski Vladimir, Gulicovski Jelena J., Zunic Milan, Bošković Snežana B., "Studies on Structural and Morphological Properties of Multidoped Ceria Ce0.8Nd0.0025Sm0.0025Gd0.005Dy0.095Y0.095O2-delta (x=0.2) as Solid Solutions" Journal of Spectroscopy (2016):1-9,
https://doi.org/10.1155/2016/5184542 .
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Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC

Stojmenović, Marija; Bošković, Snežana B.; Zunic, M.; Babić, Biljana M.; Matović, Branko; Bajuk-Bogdanović, Danica V.; Mentus, Slavko V.

(2015)

TY  - JOUR
AU  - Stojmenović, Marija
AU  - Bošković, Snežana B.
AU  - Zunic, M.
AU  - Babić, Biljana M.
AU  - Matović, Branko
AU  - Bajuk-Bogdanović, Danica V.
AU  - Mentus, Slavko V.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/400
AB  - A series of four different powders ceria doped Ce1-xErxO2-delta (0.05 LT = x LT = 0.20) were synthesized by applying self-propagating reaction at room temperature (SPRT method). SPRT procedure is based on the self-propagating room temperature reaction between metal nitrates and sodium hydroxide, wherein the reaction is spontaneous and terminates extremely fast. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. XRPD, Raman spectroscopy, TEM and BET measurements were used to characterize the nanopowders at room temperature. It was shown that all obtained powders were single phase solid solutions with a fluorite-type crystal structure and all powder particles have nanometric size (about 3-4 nm). Densification was performed at 1550 degrees C, in an air atmosphere for 2 h. XRPD, SEM and complex impedance method measurements were carried out on sintered samples. Single phase form was evidenced for each sintered materials. The best value of conductivity at 700 degrees C amounted to 1.10 x 10(-2) Omega(-1) cm(-1) for Ce0.85Er0.O-3(2-delta) sample. Corresponding activation energies of conductivity amounted to 0.28 eV in the temperature range 500-700 degrees C. (C) 2015 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC
VL  - 153
SP  - 422
EP  - 431
DO  - 10.1016/j.matchemphys.2015.01.036
ER  - 
@article{
author = "Stojmenović, Marija and Bošković, Snežana B. and Zunic, M. and Babić, Biljana M. and Matović, Branko and Bajuk-Bogdanović, Danica V. and Mentus, Slavko V.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/400",
abstract = "A series of four different powders ceria doped Ce1-xErxO2-delta (0.05 LT = x LT = 0.20) were synthesized by applying self-propagating reaction at room temperature (SPRT method). SPRT procedure is based on the self-propagating room temperature reaction between metal nitrates and sodium hydroxide, wherein the reaction is spontaneous and terminates extremely fast. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. XRPD, Raman spectroscopy, TEM and BET measurements were used to characterize the nanopowders at room temperature. It was shown that all obtained powders were single phase solid solutions with a fluorite-type crystal structure and all powder particles have nanometric size (about 3-4 nm). Densification was performed at 1550 degrees C, in an air atmosphere for 2 h. XRPD, SEM and complex impedance method measurements were carried out on sintered samples. Single phase form was evidenced for each sintered materials. The best value of conductivity at 700 degrees C amounted to 1.10 x 10(-2) Omega(-1) cm(-1) for Ce0.85Er0.O-3(2-delta) sample. Corresponding activation energies of conductivity amounted to 0.28 eV in the temperature range 500-700 degrees C. (C) 2015 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC",
volume = "153",
pages = "422-431",
doi = "10.1016/j.matchemphys.2015.01.036"
}
Stojmenović, M., Bošković, S. B., Zunic, M., Babić, B. M., Matović, B., Bajuk-Bogdanović, D. V.,& Mentus, S. V. (2015). Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC.
Materials Chemistry and Physics, 153, 422-431.
https://doi.org/10.1016/j.matchemphys.2015.01.036
Stojmenović M, Bošković SB, Zunic M, Babić BM, Matović B, Bajuk-Bogdanović DV, Mentus SV. Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC. Materials Chemistry and Physics. 2015;153:422-431
Stojmenović Marija, Bošković Snežana B., Zunic M., Babić Biljana M., Matović Branko, Bajuk-Bogdanović Danica V., Mentus Slavko V., "Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC" Materials Chemistry and Physics, 153 (2015):422-431,
https://doi.org/10.1016/j.matchemphys.2015.01.036 .
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Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1-xErxO2-delta (x=0.05-0.20) as a pigment

Stojmenović, Marija; Milenkovic, Maja C.; Bankovic, Predrag T.; Zunic, Milan; Gulicovski, Jelena J.; Pantić, Jelena R.; Bošković, Snežana B.

(2015)

TY  - JOUR
AU  - Stojmenović, Marija
AU  - Milenkovic, Maja C.
AU  - Bankovic, Predrag T.
AU  - Zunic, Milan
AU  - Gulicovski, Jelena J.
AU  - Pantić, Jelena R.
AU  - Bošković, Snežana B.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/880
AB  - Ceramic pigments based on cerium oxide were synthesized by self-propagating room temperature method and their color properties were assessed from the viewpoint of potential environmentally nontoxic pink pigments. Thermal stabilities of the pigments were examined at 600, 900 and 1200 degrees C. According to X-ray powder diffraction and Raman spectroscopy results, all obtained pigments were singlephase solid solutions of cerium oxide, independent of the concentration of dopants. The X-ray analysis showed that the crystallites were of nanometric dimensions, as recorded and by transmission electron microscopy analysis. Color characteristics of solid solutions, which depended on concentration erbium ions and calcination temperature, and their position in the chromaticity diagram were studied by ultraviolet visible spectrophotometry, which confirmed potential application of environmentally friendly pigments of desired color. The color efficiency of pigments was also evaluated by calorimetric analysis. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Dyes and Pigments
T1  - Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1-xErxO2-delta (x=0.05-0.20) as a pigment
VL  - 123
SP  - 116
EP  - 124
DO  - 10.1016/j.dyepig.2015.07.030
ER  - 
@article{
author = "Stojmenović, Marija and Milenkovic, Maja C. and Bankovic, Predrag T. and Zunic, Milan and Gulicovski, Jelena J. and Pantić, Jelena R. and Bošković, Snežana B.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/880",
abstract = "Ceramic pigments based on cerium oxide were synthesized by self-propagating room temperature method and their color properties were assessed from the viewpoint of potential environmentally nontoxic pink pigments. Thermal stabilities of the pigments were examined at 600, 900 and 1200 degrees C. According to X-ray powder diffraction and Raman spectroscopy results, all obtained pigments were singlephase solid solutions of cerium oxide, independent of the concentration of dopants. The X-ray analysis showed that the crystallites were of nanometric dimensions, as recorded and by transmission electron microscopy analysis. Color characteristics of solid solutions, which depended on concentration erbium ions and calcination temperature, and their position in the chromaticity diagram were studied by ultraviolet visible spectrophotometry, which confirmed potential application of environmentally friendly pigments of desired color. The color efficiency of pigments was also evaluated by calorimetric analysis. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Dyes and Pigments",
title = "Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1-xErxO2-delta (x=0.05-0.20) as a pigment",
volume = "123",
pages = "116-124",
doi = "10.1016/j.dyepig.2015.07.030"
}
Stojmenović, M., Milenkovic, M. C., Bankovic, P. T., Zunic, M., Gulicovski, J. J., Pantić, J. R.,& Bošković, S. B. (2015). Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1-xErxO2-delta (x=0.05-0.20) as a pigment.
Dyes and Pigments, 123, 116-124.
https://doi.org/10.1016/j.dyepig.2015.07.030
Stojmenović M, Milenkovic MC, Bankovic PT, Zunic M, Gulicovski JJ, Pantić JR, Bošković SB. Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1-xErxO2-delta (x=0.05-0.20) as a pigment. Dyes and Pigments. 2015;123:116-124
Stojmenović Marija, Milenkovic Maja C., Bankovic Predrag T., Zunic Milan, Gulicovski Jelena J., Pantić Jelena R., Bošković Snežana B., "Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1-xErxO2-delta (x=0.05-0.20) as a pigment" Dyes and Pigments, 123 (2015):116-124,
https://doi.org/10.1016/j.dyepig.2015.07.030 .
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