Two-step sintering ceria-based electrolytes

International Journal of Hydrogen Energy

Volumn 35, Issue 7, 2010, Pages 2737-2741

  Lapa, C M ^a   de Souza, D P F ^a   Figueiredo, F M L ^b   Marques, F M B ^b  

^a FEDERAL UNIVERSITY OF SÃO CARLOS   (Brazil)

^b UNIVERSITY OF AVEIRO   (Portugal)

Author keywords

Ceria; Microstructure; Sintering; Solid electrolytes; Solid oxide fuel cells

Indexed keywords

AVERAGE GRAIN SIZE; BULK TRANSPORT; CERIA; DENSIFICATIONS; DOPANT CATION; DOPED MATERIALS; GADOLINIUM DOPED CERIA; IMPEDANCE SPECTROSCOPY; IMPEDANCE SPECTRUM; PEAK TEMPERATURES; TEMPERATURE RANGE; TWO-STEP SINTERING;

CERIUM COMPOUNDS; DOPING (ADDITIVES); GADOLINIUM; GALLIUM; GRAIN BOUNDARIES; GRAIN SIZE AND SHAPE; MICROSTRUCTURE; SCANNING ELECTRON MICROSCOPY; SINTERING; SOLID OXIDE FUEL CELLS (SOFC); X RAY DIFFRACTION; YTTRIUM; YTTRIUM ALLOYS;

SOLID ELECTROLYTES;

EID: 77951024911     PISSN: 03603199     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ijhydene.2009.04.056     Document Type: Article

References (17)

1. Inaba H., and Tagawa H. Ceria-based solid electrolytes. Solid State Ionics 83 (1996) 1-16
2. 2-y/2 electrolytes for IT-SOFCs operation at 500 °C. Solid State Ionics 129 (2000) 95-110
3. Kharton V.V., Figueiredo F.M., Navarro L., Naumovich E.N., Kovalevsky A.V., Yaremchenko A.A., et al. Ceria-based materials for solid oxide fuel cells. J Mater Sci 36 5 (2001) 1105-1117
4. Kleinlogel C.M., and Gauckler L.J. Mixed electronic-ionic conductivity of cobalt doped cerium gadolinium oxide. J Electroceram 5 3 (2000) 231-243
5. Kleinlogel C.M., and Gauckler L.J. Sintering and properties of nanosized ceria solid solutions. Solid State Ionics 135 1-4 (2000) 567-573
6. 2-δ ceramics. Mater Lett 57 (2002) 124-129
7. Zhang T.S., Ma J., Kong L.B., Chan S.H., Hing P., and Kilner J.A. Iron oxide as an effective sintering aid and a grain boundary scavenger for ceria-based electrolytes. Solid State Ionics 167 (2004) 203-207
8. Yoshida H., Miura K., Fujita J., and Inagaki T. Effect of gallia addition on the sintering behavior of samaria-doped ceria. J Am Ceram Soc 82 (1999) 219-221
9. 1.9 ceramics prepared by commercial powders. J Mater Sci 40 5 (2005) 1153-1158
10. Lee J.S., Choi K.H., Ryu B.K., Shin B.C., and Kim I.S. Effects of gallia additions on sintering behavior of gadolinia-doped ceria. Mater Res Bull 39 12 (2004) 2025-2033
11. Lee J.S., Choi K.H., Park M.W., Kwak D.J., Shin K.H., and Shin C.W. Improvement of sinterability of gadolinia-doped ceria via a high-energy ball milling process. J Mater Sci 41 23 (2006) 7983-7988
12. Chen L.W., and Wang X.H. Sintering dense nanocrystalline ceramics without final-stage grain growth. Nature 404 (2000) 168-171
13. 2 ceramics. J Electrochem Soc 154 4 (2007) A258-A262
14. Steil M.C., Thévenot F., and Kleitz M. Densification of yttria-stabilized zirconia - impedance spectroscopy analysis. J Electrochem Soc 144 (1997) 390-396
15. Tadokoro S.K., and Muccillo E.N.S. Effect of Y and Dy co-doping on electrical conductivity of ceria ceramics. J Eur Ceram Soc 27 13-15 (2007) 4261-4264
16. Omar S., Wachsman E.D., and Nino J.C. A co-doping approach towards enhanced ionic conductivity in fluorite-based electrolytes. Solid State Ionics 177 35-36 (2006) 3199-3203
17. Ou D.R., Mori T., Ye F., Zou J., Auchterlonie G., and Drennan J. Oxygen-vacancy ordering in lanthanide-doped ceria: dopant-type dependence and structure model. Phys Rev B 77 (2008) 024108 10.1103/PhysRevB.77.024108