Hydrothermal synthesis and characterization of rare-earth ruthenate pyrochlore compounds R_2Ru_2O_7(R=Pr_(3+),Sm(3+)-Ho(3+))

查看全文 作　　者：YAO LinRan, WANG Dong, PENG Wen, HU WeiWei, YUAN HongMing & FENG ShouHua State key Laboratory of Inorganic Synthesis and Preparative Chemistry;College of Chemistry, Jilin University, Changchun 130023, China

出　　处：《Science China Chemistry》索引2011年第54卷第6期,共6页

基　　金：supported by the National Natural Science Foundation of China (90922034) 摘　　要：A series of pyrochlore oxides, R2Ru2O7 (R=Pr3+, Sm3+–Ho3+) were synthesized under mild hydrothermal conditions. All the samples crystallize in uniform octahedron characteristically. The products were characterized by powder X-ray diffraction, scanning electron microscopy, energy-disperse X-ray spectroscopy, and dc susceptibility, and the factors that affected the crystallization were discussed. It was found that the purity of products depends strongly on the raw materials and the amount of alkalinity in the initial reaction mixtures. The ZFC and FC susceptibilities of all of the compounds R2Ru2O7 at low temperature were also measured and discussed. 关键词：水热合成表征 X射线衍射分析扫描电子显微镜 X射线光谱仪钐反应混合物水热条件

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Hydrothermal synthesis and characterization of rare-earth ruthenate pyrochlore compounds R_2Ru_2O_7(R=Pr_(3+),Sm(3+)-Ho(3+))

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