Mechanochemical synthesis of cerium orthophosphate
来源期刊：Journal of Rare Earths2009年第4期
论文作者：A.Matraszek I.Szczygie L.Macalik J.Hanuza
文章页码：598 - 602
摘 要：A facile, simple and rapid preparation method of cerium orthophosphate was presented. The synthesis of low-crystalline CePO4 occurred upon mixing of cerium （III） nitrate and sodium phosphate, and was an exchange-type reaction. The phase composition of the obtained powder was checked by the XRD and FTIR methods, indicating the presence of cerium phosphate. Further investigations on thermal behavior of the synthesized cerium salt had shown that the obtained orthophosphate crystallized at first in rhabdophane-type structure. It converted to monazite （monoclinic symmetry） during heating at the temperatures of above 600 oC. Oxidation of Ce3+ to Ce4+ was avoided during the syntheses, as confirmed by the XPS experiments.
A.Matraszek1，I.Szczygie1，L.Macalik2，J.Hanuza2,3
1. Department of Inorganic Chemistry, Wroctaw University of Economics ul.Komandorska 118/120, Wroctaw, 53-345, Poland2. Institute of Low Temperature and Structure Research, Polish Academy of Sciences ul.Okólna 2, Wroctaw, 50-422, Poland3. Wroctaw University of Economics, Department of Bioorganic Chemistry ul.Komandorska 118/120, Wroctaw, 53-345, Poland
摘 要：A facile, simple and rapid preparation method of cerium orthophosphate was presented. The synthesis of low-crystalline CePO4 occurred upon mixing of cerium （III） nitrate and sodium phosphate, and was an exchange-type reaction. The phase composition of the obtained powder was checked by the XRD and FTIR methods, indicating the presence of cerium phosphate. Further investigations on thermal behavior of the synthesized cerium salt had shown that the obtained orthophosphate crystallized at first in rhabdophane-type structure. It converted to monazite （monoclinic symmetry） during heating at the temperatures of above 600 oC. Oxidation of Ce3+ to Ce4+ was avoided during the syntheses, as confirmed by the XPS experiments.
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