Strontium-doped lanthanum manganite
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2010
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INTERNATIONAL CONFERENCE ON ELECTROCERAMICS, 12th
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Resumo
The La1-xSrxMnO3 - LSM deposited in the form of thin films on a ZrO2/Y2O3 - YSZ substrate
is an cathode of solid oxide fuel cells - SOFC. In this work, the LSM was synthesized by the
citrate technique and the cathode layer was deposited by wet powder spraying. X-ray
fluorescence spectroscopic analysis showed that the synthesis was efficient to obtain powders
with x = 0.22 mol%. Scanning electron micrographs showed that the particles were in the
form of agglomerates less than 1 µm and this was verified by phase analysis light scattering
granulometry (0.50 µm). The diffractograms revealed that the main phase in LSM powders
had a hexagonal crystalline structure. Thin LSM film also had the hexagonal crystalline
structure. The micrograph of the LSM film also revealed a porous microstructure with
thickness of 30 µm. The presence of La, Sr and Mn in the film was confirmed by energy
dispersive x-ray spectroscopy. The conditions used to synthesize LSM resulted in adequate
product characteristics for deposition. The wet powder spraying technique enabled the
manufacture of adherent porous thin film of LSM on dense YSZ substrate.
Como referenciar
CHIBA, RUBENS; VARGAS, REINALDO A.; SEO, EMILIA S.M.; ANDREOLI, MARCO. Strontium-doped lanthanum manganite: synthesis by citrate technique and deposition by wet powder spraying. In: INTERNATIONAL CONFERENCE ON ELECTROCERAMICS, 12th, june 13-16, 2010, Noruega. Abstract... p. 475. Disponível em: http://repositorio.ipen.br/handle/123456789/21149. Acesso em: 30 Dec 2025.
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.