In the field of materials science, the research hotspots of ammonium metatungstate hydrate mainly include the following aspects: firstly, to study the synthesis method of ammonium metatungstate hydrate and explore new preparation process and conditions to obtain tungsten-based materials with specific structure and properties; secondly, to study the application of ammonium metatungstate hydrate in the fields of energy materials, environmental treatment materials, etc., and to explore its potentials and values as a new type of functional materials; thirdly, to study the compounding and hybridization of ammonium metatungstate hydrate with other materials, and to develop composite materials with multifunctionality and high performance; and fourthly, to research on The third is to study the composite and hybridization between ammonium metatungstate hydrate and other materials, and develop composite materials with multifunctionality and high performance; the fourth is to study the relationship between the microstructure and properties of ammonium metatungstate hydrate, and to reveal the nature and law of its physical and chemical properties.
The following are the hot spots of ammonium metatungstate hydrate in the field of materials science, which are more focused on the preparation method, properties and applications:
Research on the preparation method of ammonium metatungstate hydrate
Thermal degradation method
Thermal degradation method using ammonium paratungstate as raw material is currently considered the most competitive method. This method generates water-soluble substances by controlling the thermal decomposition conditions, and then the solid ammonium metatungstate is produced by hydration.
Ion exchange method
The use of cation exchange resin as an additive reduces the risk of overcooking or incomplete decomposition during thermal degradation without affecting the quality of the final product.
Spray Drying Method
Ammonium metatungstate (AMT) microspheres with different morphologies were successfully prepared by two types of spray drying, namely, air-flow and centrifugal spray drying, and the morphologies and particle sizes of the microspheres were investigated.
Bipolar membrane electrodialysis
It can effectively convert ammonium tungstate solution into ammonium metatungstate solution with stable process operation, high current efficiency, and the yield is more than 99.5%.
Research on the properties of ammonium metatungstate hydrate
As one of the precursors of tungsten carbide (WC) catalysts, the properties of ammonium metatungstate directly affect the surface morphology and particle size distribution of WC particles, which in turn affects its catalytic activity. Specific physical and chemical properties such as melting point, boiling point, solubility, etc. are not provided in detail in the referenced article, but its behavior and properties under some specific conditions are the focus of the study.
Application Studies of Ammonium Metatungstate Hydrate
Ammonium metatungstate has a wide range of applications in several industries, including petroleum, chemical, metallurgy, electronics, optics, ceramics, and others. It is used in the preparation of tungsten series of chemical products and metal products, such as tungsten metal, alloy steel, and fireproof fabrics. Meanwhile, ammonium metatungstate is also used in the manufacture of various petrochemical catalysts and so on.
The research hotspots of ammonium metatungstate hydrate in the field of material science mainly focus on the efficient and environmentally friendly preparation method, its unique physical and chemical properties, and its application potential in different industries. With the continuous progress of science and technology and the rapid development of industry, these research hotspots are expected to promote the wide application of ammonium metatungstate hydrate in more fields.
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