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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Effect of pH Value on the Structure and Morphology of LnPO4 (Ln=La, Ce, Nd)
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 1940-1943)
Author(s): Jun Ma, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
Xia Li, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
Abstract: Hexagonal LnPO4 (Ln=La, Ce, Nd) nanocrystal materials with different morphologies were successfully synthesized by a hydrothermal method. X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to characterize the resulting materials. It was found that the crystallinity of hexagonal LnPO4 (Ln=La, Ce, Nd) decreased gradually as the pH value increased. Moreover, the morphological evolution from nanorods with high aspect ratio to irregular nanoparticles was obtained as the pH values increasing. Furthermore, a possible mechanism for LnPO4 (Ln=La, Ce, Nd) shape evolution was proposed based on the results.
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