Nanocomposite powders in the system (La1-xSx)(a)MnO3-YSZ((1-y)) [LSM-YSZ], as an attractive cathode material for high operating solid oxide fuel cell (SOFC), were obtained through ultrasonic spray pyrolysis (1.7 MHz) method. The principle of the synthesis is based on a single-step high temperature aerosol decomposition of atomized precursor solutions composed from yttria stabilized ZrO2 sol (average particle size similar to 60 nm) and corresponding aqueous nitrate and hydrogen peroxide solutions of La, Sr and Mn. Two starting systems were examined: (a) (La0.76Sr0.24)(0.93)MnO3 with 0% YSZ, and (b) (La0.77Sr0.23)(0.92)MnO3-YSZ(0.81) with corresponding molar ratio LSM/YSZ = 48:52. X-ray diffraction analysis of as-prepared powders showed the presence of a lanthanum magnesium oxide and yttrium zirconium oxide. Compositional homogeneity and particle morphology were determined by SEM analysis. LSM-YSZ obtained particles are spherical in shape, submicron in size and composed of primary subgra...ins. TEM analysis of ultra-cross section revealed dense-packed nanosized grains, several tens of nanometers in diameter. After powders calcination TEM observations confirmed dense particle structure composed of primary grains, with a mean diameter of around 100 nm. The structural changes expressed through the crystallite growth were analyzed by nonisothermal differential scanning calorimetry (DSC).
TY - JOUR
AU - Marinković-Stanojević, Zorica
AU - Mančić, Lidija T
AU - Cribier, JF
AU - Ohara, S
AU - Fukui, T
AU - Milošević, Olivera
PY - 2004
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/107
AB - Nanocomposite powders in the system (La1-xSx)(a)MnO3-YSZ((1-y)) [LSM-YSZ], as an attractive cathode material for high operating solid oxide fuel cell (SOFC), were obtained through ultrasonic spray pyrolysis (1.7 MHz) method. The principle of the synthesis is based on a single-step high temperature aerosol decomposition of atomized precursor solutions composed from yttria stabilized ZrO2 sol (average particle size similar to 60 nm) and corresponding aqueous nitrate and hydrogen peroxide solutions of La, Sr and Mn. Two starting systems were examined: (a) (La0.76Sr0.24)(0.93)MnO3 with 0% YSZ, and (b) (La0.77Sr0.23)(0.92)MnO3-YSZ(0.81) with corresponding molar ratio LSM/YSZ = 48:52. X-ray diffraction analysis of as-prepared powders showed the presence of a lanthanum magnesium oxide and yttrium zirconium oxide. Compositional homogeneity and particle morphology were determined by SEM analysis. LSM-YSZ obtained particles are spherical in shape, submicron in size and composed of primary subgrains. TEM analysis of ultra-cross section revealed dense-packed nanosized grains, several tens of nanometers in diameter. After powders calcination TEM observations confirmed dense particle structure composed of primary grains, with a mean diameter of around 100 nm. The structural changes expressed through the crystallite growth were analyzed by nonisothermal differential scanning calorimetry (DSC).
PB - Elsevier Science Sa, Lausanne
T2 - Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
T1 - Nature of structural changes in LSM-YSZ nanocomposite material during thermal treatments
EP - 619
SP - 615
VL - 375
DO - 10.1016/j.msea.2003.10.270
ER -
@article{
author = "Marinković-Stanojević, Zorica and Mančić, Lidija T and Cribier, JF and Ohara, S and Fukui, T and Milošević, Olivera",
year = "2004",
abstract = "Nanocomposite powders in the system (La1-xSx)(a)MnO3-YSZ((1-y)) [LSM-YSZ], as an attractive cathode material for high operating solid oxide fuel cell (SOFC), were obtained through ultrasonic spray pyrolysis (1.7 MHz) method. The principle of the synthesis is based on a single-step high temperature aerosol decomposition of atomized precursor solutions composed from yttria stabilized ZrO2 sol (average particle size similar to 60 nm) and corresponding aqueous nitrate and hydrogen peroxide solutions of La, Sr and Mn. Two starting systems were examined: (a) (La0.76Sr0.24)(0.93)MnO3 with 0% YSZ, and (b) (La0.77Sr0.23)(0.92)MnO3-YSZ(0.81) with corresponding molar ratio LSM/YSZ = 48:52. X-ray diffraction analysis of as-prepared powders showed the presence of a lanthanum magnesium oxide and yttrium zirconium oxide. Compositional homogeneity and particle morphology were determined by SEM analysis. LSM-YSZ obtained particles are spherical in shape, submicron in size and composed of primary subgrains. TEM analysis of ultra-cross section revealed dense-packed nanosized grains, several tens of nanometers in diameter. After powders calcination TEM observations confirmed dense particle structure composed of primary grains, with a mean diameter of around 100 nm. The structural changes expressed through the crystallite growth were analyzed by nonisothermal differential scanning calorimetry (DSC).",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing",
title = "Nature of structural changes in LSM-YSZ nanocomposite material during thermal treatments",
pages = "619-615",
volume = "375",
doi = "10.1016/j.msea.2003.10.270"
}
Marinković-Stanojević, Z., Mančić, L. T., Cribier, J., Ohara, S., Fukui, T.,& Milošević, O.. (2004). Nature of structural changes in LSM-YSZ nanocomposite material during thermal treatments. in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
Elsevier Science Sa, Lausanne., 375, 615-619.
https://doi.org/10.1016/j.msea.2003.10.270
Marinković-Stanojević Z, Mančić LT, Cribier J, Ohara S, Fukui T, Milošević O. Nature of structural changes in LSM-YSZ nanocomposite material during thermal treatments. in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing. 2004;375:615-619.
doi:10.1016/j.msea.2003.10.270 .
Marinković-Stanojević, Zorica, Mančić, Lidija T, Cribier, JF, Ohara, S, Fukui, T, Milošević, Olivera, "Nature of structural changes in LSM-YSZ nanocomposite material during thermal treatments" in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 375 (2004):615-619,
https://doi.org/10.1016/j.msea.2003.10.270 . .
