Synthesis of ceria-based ceramics by combustion technique

C. Matei, D. Berger, S. Stoleriu, D. Neagu, E. Stefan

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Abstract

Ce1-xGdx/SmxO2-δ(x=0.1, 0.2) powders were prepared by combustion method using corresponding metallic nitrates and different fuels (α-alanine, oxamic hydrazide and tartaric acid). Ce1-xGdx/SmxO2-δ powders were formed direct from combustion reaction in one single step when oxamic hydrazide or α-alanine is used as fuel. In the case of tartarate-based precursors, the fluorite phase has been formed by calcining the as-prepared powders (the powders resulted in the combustion reaction) at 500 °C, 3h. The structure and thermal decomposition of the precursors, isolated before the ignition of the reaction mixture, were studied by FTIR spectroscopy and thermal analysis (DTA-TG). The oxide powders were investigated by X-ray diffraction and scanning electron microscopy. Densification of Ce 1-xGdx/SmxO2-δ (x=0.1, 0.2) ceramic bodies was studied function of the doping ion and sintering conditions.

Original languageEnglish
Pages (from-to)1524-1529
Number of pages6
JournalJournal of Optoelectronics and Advanced Materials
Volume12
Issue number7
Publication statusPublished - 1 Jul 2010
Externally publishedYes

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Keywords

  • ceria-based ceramics
  • combustion method
  • solid oxide fuel cells

Cite this

Matei, C., Berger, D., Stoleriu, S., Neagu, D., & Stefan, E. (2010). Synthesis of ceria-based ceramics by combustion technique. Journal of Optoelectronics and Advanced Materials, 12(7), 1524-1529.