关键词:

稀土化合物,

镧系锗酸盐,

功能材料,

合成方法

Abstract: As an important strategic resource, rare earth is one of the key materials needed in high precision industry. Lanthanide germanate is a variety of rare earth functional materials, it has 4f electronic structure and O-Ge tetrahedral structure which are similar to rare earth functional materials and silicate. Lanthanide germanate also has the physical and chemical properties and structural characteristics of rare earth functional materials and silicate, which has received extensive concern and study at domestic and overseas. At the moment, lanthanide germanates show excellent physical and chemical properties such as optical, electrical, magnetic and ferroelectric properties, and have a better application prospect in related fields. In this paper, the synthesis methods and research status of lanthanide germanates were reviewed. The preparation of lanthanide germanates by high temperature solid method, flux method, hydrothermal synthesis method and complex method were discussed emphatically, the applications of lanthanide germanates in luminescent materials, photocatalytic materials and solid electrolyte were introduced. Then the development tread and application domain of lanthanide germanate preparation technology were prospected.

Key words:

rare earth compound,

lanthanide germanate,

functional material,

synthesis method

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