Introduction to Germanium Disulfide and Principle of Synthesis Method

Introduction to Germanium Disulfide

Properties: white powder. Orthogonal structure. The density is 2.19g/cm3. Melting point is 800°C. Unstable, easy to sublime and be oxidized at high temperature, and dissociate in moist air or inert atmosphere. The molten state is a bright brown transparent body with a density of 3.01g/cm3. It is insoluble in water and mineral acids (including strong acids), easily soluble in hot alkali, and soluble in ammonia or diamine sulfide to form germanium imide. It is produced by the reaction of germanium powder and sulfur vapor or a mixed gas of hydrogen sulfide and sulfur. It is an intermediate product of germanium metallurgy.

Synthetic method of germanium disulfide

principle

GeO2+NaOH══Na4GeO4+2H2O

Na4GeO4+4H2SO4══Ge(SO4)2+2Na2SO4+4H2O

Ge(SO4)2+2H2S══GeS2+2H2SO4

operate

Put 5g of germanium dioxide into a 250mL beaker, moisten it with water, add 25mL of 10mol/L sodium hydroxide aqueous solution, and slowly heat. The solution was cooled and neutralized with 3mol/L sulfuric acid. Adjust the acid concentration to 0.1mol/L and pass in hydrogen sulfide to precipitate and filter heavy metals other than germanium. Add 9mol/L sulfuric acid to the filtrate, adjust the acidity to 3mol/L, and pure white germanium disulfide will precipitate. The precipitate was collected in a Gooch funnel and washed with water.

Overview of germanium sulfide GeS2 powder

Germanium disulfide, the molecular formula is GeS2. Unstable, easy to sublime and oxidize at high temperature, decompose in moist air or inert atmosphere, insoluble in water and inorganic acid (including strong acid), soluble in hot alkali, soluble in ammonia or vulcanized film.

The density of germanium disulfide is 2.19 g/cm3. The melting point is 800°C. It is a small white powder mainly composed of germanium disulfide (GeS2) particles. Like many closely related metal sulfides, germanium disulfide powder is currently a research topic for many researchers to study its potential in solid-state batteries and other energy storage applications.

The crystals of germanium disulfide are orthogonal. A single cell contains 24 molecules, the size of which is: A=11.66a, B=22.34A, C=6.86A. The accuracy rate is 1/2%. The space group is FDD (C2V19). The eight germanium atoms are located on the double axis. All other atoms occupy a rough position. Determine the 12 parameters involved. Each germanium atom is connected to a tetrahedron of four sulfur atoms with an atomic distance of 2.19A. The angle between the two sulfur bonds is 103°.

Application of germanium sulfide GeS2 powder

What is the use of germanium sulfide GeS2 powder?

Solid-state batteries: Like many closely related compounds, germanium disulfide is of particular interest to design research and the manufacturers in front of them.

In particular, this material has potential value in the production of cathodes for certain types of batteries.

Sulfurized nanoparticles have great potential as high-performance lithium-sulfur batteries.

Electricity: For researchers engaged in energy storage technology, germanium disulfide has the same characteristics and has certain potential value in the production of other components and materials for advanced electronic technology.

Catalyst: Like many sulfides, germanium disulfide has the unique potential to produce more complex compounds for high-tech equipment and other chemical reactions.

Optical properties: Like many related materials, nano-scale sulfur provides a large number of unique optical properties, many of which are not yet fully understood.

This makes the material's research interests cover a wide range of industries and fields from electronics to photovoltaics to imaging technology.

Germanium sulfide GeS2 powder price

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