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Опубликовано 2010-07-07 Опубликовано на SciPeople2011-01-21 06:12:32 ЖурналJournal of Alloys and Compounds

Synthesis and characterization of nano-crystalline Ce1-xGdxO2-x/2 (x = 0-0.30) solid solutions
L.D. Jadhav, M.G. Chourashiya, A.P. Jamale, A.U. Chavanb, S.P. Patil / Muralidhar Chourashiya
Аннотация In recent years, doped ceria is an established and promising candidate as solid electrolyte for intermediate temperature solid oxide fuel cell (IT-SOFC). In this investigation, synthesis and characterizations of nano-crystalline Gd doped ceria, (Ce1−xGdxO2−x/2, where x = 0–0.3), prepared using glycine–nitrate process (GNP) has been presented. Evolution of structural and morphological properties of nano-powders as a function of heat treatment has also been studied. The prepared samples were characterized using TG–DTA, FT-IR, Raman spectroscopy, XRD, SEM, etc. In addition, the effect of Gd content over the micro-structural properties of nano-crystalline Gd doped ceria was investigated. Raman analysis of calcined powders confirms the formation of the solid solution of Ce1−xGdxO2−x/2 instead of mixture of CeO2 and Gd2O3. The solid solutions obeyed Vegard's rule very well. Grain growth of sintered samples was observed to hinder with an increase in Gd content.
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