2011
DOI: 10.1007/s11666-011-9625-1
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Electrical Properties of Atmospheric Plasma-Sprayed La10(SiO4)6O3 Electrolyte Coatings

Abstract: In this present work, La 10 (SiO 4 ) 6 O 3 as a promising electrolyte candidate for intermediate temperature solid oxide fuel cells (IT-SOFCs) has been synthesized and its electrical property was investigated as a function of temperature. In order to improve the density and oxide ion conductivity of La 10 (SiO 4 ) 6 O 3 , the feedstock powder was prepared by sintering the oxide mixture powders at proper sintering temperatures and times. The hexagonal apatite-type ceramic coatings with a typical composition of … Show more

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Cited by 9 publications
(3 citation statements)
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“…The usage of apatite-type lanthanum silicates (ATLS) as novel electrolyte materials for intermediate temperature solid oxide fuel cells (IT-SOFCs) has achieved considerable worldwide interest due to clean energy conversion, high energy efficiency, and the potential for developing fuel cell devices, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] ever since Nakayama et al advocated it for the first time. [17] In contrast to the vacancy mechanism common to the fluoriteand perovskite-type oxide-ion conductors, such as doped ZrO 2 (e.g.…”
Section: Introductionmentioning
confidence: 99%
“…The usage of apatite-type lanthanum silicates (ATLS) as novel electrolyte materials for intermediate temperature solid oxide fuel cells (IT-SOFCs) has achieved considerable worldwide interest due to clean energy conversion, high energy efficiency, and the potential for developing fuel cell devices, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] ever since Nakayama et al advocated it for the first time. [17] In contrast to the vacancy mechanism common to the fluoriteand perovskite-type oxide-ion conductors, such as doped ZrO 2 (e.g.…”
Section: Introductionmentioning
confidence: 99%
“…Assim como os demais métodos citados anteriormente, o método plasma "spraying" também pode ser utilizado para sintetizar silicato de lantânio tipo apatita em forma de filmes finos de forma direta (74)(75)(76) . Logo, é muito comum que os métodos de síntese sejam combinados e esta combinação é feita por diversos motivos, entre eles, redução de custos, simplificação de processo, otimização de parâmetros de síntese, entre outros.…”
Section: Iv7 Método "Plasma Spraying"unclassified
“…A remoção do solvente ocorre pela secagem numa placa quente e a remoção final dos resíduos orgânicos do gel seco bem como a cristalização de fases desejadas através da calcinação (57,60) . Na síntese que envolvem elementos de terras raras, o aparecimento de fases secundárias como La2Si2O7 e LaSiO5 pode ser minimizado indesejáveis principalmente quando se trata da síntese de silicato de terras raras, em especial, silicato de lantânio (50,66,75) .…”
Section: Iv9 Método Sol-gelunclassified