Synthesis of nanocrystalline samarium-doped CeO2 (SDC) powders as a solid electrolyte by using a simple solvothermal route


Karaca T., Altincekic T. , Oksuzomer M. A. F.

Ceramics International, cilt.36, sa.3, ss.1101-1107, 2010 (SCI Expanded İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Konu: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.ceramint.2009.12.005
  • Dergi Adı: Ceramics International
  • Sayfa Sayıları: ss.1101-1107

Özet

Samarium-doped CeO2 is a leading electrolyte for applications in solid oxide fuel cells (SOFCs), which requires a typical sintering temperature of 1400-1600 °C. In this work, fully dense CeO2 ceramics doped with 10-20 at.% samarium have been fabricated by a simple polyol process. The XRD and SEM results show that a complete solid solution between CeO2 and samarium was obtained at the sintering temperature of 1300 °C. And also the densification temperature is significantly lower than those (1400-1600 °C) reported for the SDC powders processed by modified sol-gel process and hydrothermal treatment. The resultant ceramics show the sizes of ultrafine grain are lower than 1 μm. Crown Copyright © 2009.