Electrical properties of YSZ/NiO composites prepared by a liquid mixtures technique
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Journal of the European Ceramic Society
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We report the preparation and characterization of yttria-stabilized zirconia/nickel oxide composites (YSZ/NiO). This composite is the precursor
material of the cermet YSZ/Ni, which is used as solid oxide fuel cell anode material. The performance of the anode is strongly dependent
on the microstructural properties of the cermet. Therefore, the control of the microstructure of the YSZ/NiO composite is a key step for the
fabrication of high-performance anodes. In this study, the composites were prepared by a modified liquid mixture technique. Scanning electron
microscopy analysis evidenced the good dispersion of the phases and that NiO nanoparticles are spread over the YSZ surface. Sintered pellets
were studied by X-ray diffraction and impedance spectroscopy. The main results show that the composite is comprised of a well-dispersed
mixture of the two phases. The electrical conductivity data show that there is a strong dependence of the transport mechanism on the relative
composition of phases.
Como referenciar
ESPOSITO, V.; FLORIO, D.Z.; FONSECA, F.C.; MUCCILLO, E.N.S.; MUCCILLO, R.; TRAVERSA, E. Electrical properties of YSZ/NiO composites prepared by a liquid mixtures technique. Journal of the European Ceramic Society, v. 25, n. 12, p. 2637-2641, 2005. DOI: 10.1016/j.jeurceramsoc.2005.03.116. Disponível em: http://repositorio.ipen.br/handle/123456789/5520. 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.