Crystalline phase of CeGaO3 has been successfully synthesized by two kinds of methods; arc- and skull- melting methods. In the case of arc -melting method, CeGaO3 is finally obtained by a reaction of Ce2O3 and Ga2O3, where, Ce2O3 is produced by a "thermal effect on the reduction" from the source CeO2 in the first reaction stage. On the other hand, in the case of skull-melting method, CeGaO3 is obtained by a "direct reduction" of Ga2O3 by Ce. Both crystallographic data on CeGaO3 obtained by two methods are consistent. The structure belongs to tetragonal system with space group, P4/mmm, which is different from cubic system as reported in literatures. Lattice constants are a=0.3873(1)nm, c=0.3880(1)nm, V=0.5819(3) × 10-28 m3, Z=1. This compound is unstable at high temperature in air and decomposes to CeO2 and Ga2O3 by heating up to 1250 °C.
|Number of pages||2|
|Journal||Nippon Kagaku Kaishi / Chemical Society of Japan - Chemistry and Industrial Chemistry Journal|
|Publication status||Published - 1996|
ASJC Scopus subject areas
- Chemical Engineering(all)