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Nanocrystalline Y 2O 3,CeO 2,Nd 2O 3,Pr 6O 11 and Sm 2O 3 were prepared by glycine nitrate combustion synthesis and the chemical stability of nanocrystalline Nd 2O 3,Pr 6O 11 and Sm 2O 3 in moisture had also been studied.The IR analysis on nanocrystalline Y 2O 3 indicated that with the decrease of particle size,the IR absorption peak due to Y O stretching vibration shifted red,together with the expansion of the IR absorption peak.
Nanocrystalline Y 2 O 3, CeO 2, Nd 2O 3, Pr 6O 11 and Sm 2O 3 were prepared by glycine nitrate combustion synthesis and the chemical stability of nanocrystalline Nd 2 O 3, Pr 6O 11 and Sm 2 O 3 in moisture had also been studied. The IR analysis on nanocrystalline Y 2O 3 indicates that with the decrease of particle size, the IR absorption peak due to YO stretching vibration shifted red, together with the expansion of the IR absorption peak.