摘要
制备了两系列稀土元素钼钒硅杂多酸盐。研究了它们的振动光谱、电子光谱、X-射线粉末衍射及热解性质,通过化学分析和热重分析,确定了化合物的分子式,其通式为LnH_2Si-Mo_(11)V_1O_(40)·XH_2O,Ln_4(H_2SiMo_(10)V_2O_(40))_3·XH_2O(Ln=La、Ce、Pr、Nd、Sm、Eu、Gd、Dy)。
The salts of the molybdovanadosilicic heteropolyacids with lanthanide have been prepared by double decomposition method. Their vibration spectra, electron spectra, X-ray powder diffraction and thermal decomposability were investigated, the molecular formulas were defined by chemical analysis and thermogravimetry, their general formulas are LnH_2 SiMo_(11)V_1O_(40). XH_2O and Ln_4(H_2SiMo_(11)V_2O_(40))_3.XH_2O (Ln=La, Ce, Pr, Nd, Sm, Eu, Gd, Dy). The methods of Synthesis and analysis of the compounds have been also discussed.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1989年第3期5-9,共5页
Journal of the Chinese Society of Rare Earths
