Gadolinium-doped ceria nanopowders synthesized by urea-based homogeneous co-precipitation (UBHP)
| Autor: | Claudio Ferone, E. Di Bartolomeo, Grazia Accardo, Gianfranco Dell'Agli, R. Cioffi, Luca Spiridigliozzi, Sung Pil Yoon |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Gadolinium Settore ING-IND/22 - Scienza e Tecnologia dei Materiali Inorganic chemistry Oxide Nanopodwers chemistry.chemical_element 02 engineering and technology Conductivity 010402 general chemistry 01 natural sciences law.invention Electrolytes Gadolinium doped ceria Solid oxide fuel cell Urea-based homogeneous co-precipitation Materials Science (all) Condensed Matter Physics chemistry.chemical_compound Urea-based homogeneous co-precipitation Nanopodwers Gadolinium doped ceria Electrolytes Solid oxide fuel cell law Ionic conductivity General Materials Science Calcination Gadolinium-doped ceria 021001 nanoscience & nanotechnology 0104 chemical sciences Dielectric spectroscopy chemistry Chemical engineering 0210 nano-technology |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|