CHEN Zhu1,2, ZHOU Li1 , LI He-ping1, XUE Wei-hong1, ZHANG Wei1,2
(1. Key Laboratory of High-temperature and High-pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China)
Abstract: Properties of the rare earth phosphate LaPO4 functional materials depend on the crystal structure, morphology, grain size and other factors. Moreover, preparation method affects the crystal structure, morphology, and grain size of LaPO4. In this paper, La(NO3)3·6H2O and (NH4)2HPO4 were used as initial reaction materials to prepare nanowires and nanoparticals under CO2-free condition and CO2-saturated condition, respectively. Compared with CO2-free condition, it turns out that, the as-synthesized LaPO4 samples possess more sharp diffraction peak as well as better crystallinity under CO2-saturated condition. What’s more, LaPO4 nanowires are characterized by uniform size, big length/diameter ratio and clearer grain boundary.
Keywords: LaPO4; hydrothermal synthesis; CO2; nanowire
Email: zhuchenfree@163.com
ACTA MINERALOGICA SINICA Vol. 36, No. 2, 2016, Page 285-288
