Hydrothermal synthesis and characterization of a new potassium phosphatoantimonate, K8Sb8P2O29 center dot 8H(2)O

被引:8
作者
An, YL [1 ]
Feng, SH [1 ]
Xu, YH [1 ]
Xu, R [1 ]
机构
[1] JILIN UNIV,DEPT CHEM,KEY LAB INORGAN HYDROTHERMAL SYNTH,CHANGCHUN 130023,PEOPLES R CHINA
关键词
D O I
10.1021/cm950182+
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new potassium phosphatoantimonate was hydrothermally synthesized and characterized by means of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), differential thermal analysis (DTA), thermogravimetric analysis (TGA), infrared spectroscopy (IR), P-31 solid-state NMR, and adsorption isothermal analysis. Results showed that this compound has a layered structure with the formula K8Sb8P2O29 . 8H(2)O. It crystallizes in the monoclinic system with unit-cell parameters a = 23.95(2) Angstrom, b = 9.51(5) Angstrom, c = 8.19(3) Angstrom, and beta = 124.77 degrees. The structure can be intercalated by organic amine molecules and the potassium ions located in between layers can be exchanged by monovalent ions. Factors such as the initial Sb/P molar ratio, pH, reaction temperature, and cations which dominate the hydrothermal synthesis of the product were assessed.
引用
收藏
页码:356 / 359
页数:4
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