Two-dimensional gadolinium-doped ceria nanosheets for low temperature sintering of solid oxide fuel cells barrier layer
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Journal of Alloys and Compounds
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A novel method for bottom-up synthesis of two-dimensional (2D) gadolinium-doped cerium oxide (CGO)
nanosheets is developed and demonstrated as an efficient precursor for interdiffusion barrier layer deposition in
solid oxide fuel cells. The CGO is the standard material used as an interlayer in intermediate-temperature solid
oxide fuel cells to avoid undesirable reactions between lanthanum strontium cobalt ferrite (LSCF) cathode and
yttria-stabilized zirconia (YSZ) electrolyte materials. Herein, the shape-control of the 2D CGO by a low-cost wetchemical method allowing for the fabrication of fully dense barrier layer of CGO is reported. The high surface
coverage promoted by the 2D CGO nanosheets resulted in a thin (~ 1 µm) and dense interdiffusion barrier layer
sintered at 1150 ◦C preventing the undesirable reaction between oxide ion conducting phases occurring at higher
temperatures. The electrochemical properties of solid oxide fuel cells confirmed the CGO nanosheet as an efficient layer for preventing the formation of resistive phases at the electrolyte/cathode interface.
Como referenciar
MORAES, LETICIA P.R.; MACHADO, MARINA.; RODRIGUES, LAYS N.; SUN, ZIQI; MARANI, DEBORA; FONSECA, FABIO C. Two-dimensional gadolinium-doped ceria nanosheets for low temperature sintering of solid oxide fuel cells barrier layer. Journal of Alloys and Compounds, v. 967, p. 1-9, 2023. DOI: 0.1016/j.jallcom.2023.171766. Disponível em: http://repositorio.ipen.br/handle/123456789/34247. 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.