Gadolinium-doped ceria nanopowders synthesized by urea-based homogeneous co-precipitation (UBHP)
- Gadolinium-doped ceria nanopowders synthesized by urea-based homogeneous co-precipitation (UBHP)
- 윤성필; 그라지아 아카르도; L. Spiridigliozzi; R. Cioffi; C. Ferone; E. Di Bartolomeo; G. Dell'Agli
- Urea-based homogeneous co-precipitation; Nanopodwers; Gadolinium doped ceria; Electrolytes; Solid oxide fuel cell
- Issue Date
- Materials chemistry and physics
- VOL 187-155
- Gadolinium (10%)-doped ceria was successfully synthesized by using an urea-based co-precipitation method (UBHP). A single fluorite phase was obtained after a low temperature (400 C) calcination treatment. The resulting powders showed grains of nanometric size with some agglomerations and an overall good sinterability. Pellets were sintered at 1300 and 1500 C for 3 h. The ionic conductivity was measured by electrochemical impedance spectroscopy measurements and a correlation between electrical properties and microstructure was revealed. The promising conductivity values showed that the synthesized powders are suitable for intermediate temperature solid oxide fuel cells (IT-SOFCs) applications.
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