Effects of Calcination Temperature on Crystal Structure of Pr-Nd Oxides

Abstract:

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Ammonium hydrogen carbonate is taken as the precipitating agent to prepare Pr-Nd carbonates from the raw material of Pr-Nd chloride solution. Pr-Nd oxides have been prepared at different calcination temperature in the range of 800°C-1500°C. The oxides were characterized by XRD and XPS.Calcination temperature effects on the structure of Pr-Nd oxides and the valence state of Pr in Pr-Nd oxides have been studied; Results showed that praseodymium oxide full entered into the lattices of neodymium oxide. The crystal structure changed from cubic into hexagonal system with increasing calcination temperature.The valence of Pr in Pr-Nd binary oxides are Pr3+ and Pr4+.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

2918-2921

DOI:

10.4028/www.scientific.net/AMR.233-235.2918

Citation:

H. Q. Li et al., "Effects of Calcination Temperature on Crystal Structure of Pr-Nd Oxides", Advanced Materials Research, Vols. 233-235, pp. 2918-2921, 2011

Online since:

May 2011

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Price:

$35.00

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