Ionic conductivity of chemically synthesized Lasub(0.9)Srsub(0.1)Gasub(0.8)Mgsub(0.2)Osub(3-'delta') solid electrolyte
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Advanced Materials Research
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Resumo
Strontium and magnesium-doped lanthanum gallate is a solid electrolyte with higher
ionic conductivity than yttria-stabilized zirconia. This perovskite-type ionic conductor has been
investigated for application as solid electrolyte in intermediate-temperature solid oxide fuel cells. In
this work the La0.9Sr0.1Ga0.8Mg0.2O3-δ composition was synthesized by a soft chemistry route
seeking for a more homogeneous microstructure. Densification was carried out by the conventional
method and by fast firing. The ionic conductivity of sintered specimens were evaluated by
impedance spectroscopy. The apparent density was about 90% and 94% for fast fired and
conventionally sintered specimens, respectively. No significant difference was found for the grain
conductivity of specimens fast fired at 1500 ºC for 5 min and sintered by the conventional method
at 1450 ºC for 4 h.
Como referenciar
REIS, S.L.; MUCCILLO, E.N.S. Ionic conductivity of chemically synthesized Lasub(0.9)Srsub(0.1)Gasub(0.8)Mgsub(0.2)Osub(3-'delta') solid electrolyte. Advanced Materials Research, v. 975, p. 81-85, 2014. DOI: 10.4028/www.scientific.net/AMR.975.81. Disponível em: http://repositorio.ipen.br/handle/123456789/22930. Acesso em: 29 Apr 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.