Technical Support

Application analysis of nanometer tungsten trioxide WO3

WO3 (VK-W50) xanthelatine has a large specific surface area and significant surface effect. It is a good catalyst, which can be used as both the main catalyst and the cocatalyst, and has high selectivity for the reaction. WO3 has a strong ability to absorb electromagnetic wave, and can be used as an excellent solar energy absorbing material and recessive material. WO3 is an N-type semiconductor material with excellent gas sensitivity and is sensitive to H2S, NH3, H2, O3 and [...]

Application of manganese silicide in materials

As a kind of refractory intermetallic compound, manganese silicide is a transition metal silicide. Due to its unique physical and chemical properties, it has been successfully applied in the fields of complementary metal oxide semiconductor components, thin film coatings, block structure components, electric heating elements, thermoelectric materials and photovoltaic materials. The nanomaterials show special electrical, optical, magnetic and thermoelectric properties, and even have potential application value in the field of catalysis. However, the traditional preparation methods such as metallurgy [...]

Hidden properties of nanoscale germanium telluride

Germanium telluride (GeTe) is a ferroelectric Rashba semiconductor with many interesting properties. The crystals are made of nanodomains whose ferroelectric polarization can be changed by an applied electric field. This ferroelectric property can also be used to change the spin of electrons in each domain, thanks to the so-called Rashba effect. Germanium telluride is therefore an interesting material for use in spintronic devices, allowing data processing with significantly less energy input. Now, HZB and a team from Lomonosov Moscow State [...]

Chemical properties and uses of stannous chloride

Stannous chloride, chemical formula SnCl2, also known as tin dichloride. The former is a transparent crystal with a melting point of 246℃, a boiling point of 652℃, and a relative density of 3.95. Soluble in water and oxidized in air to form insoluble chloride oxides. It is hydrolyzed in water to form a precipitation of basic stannous chloride (Sn(OH)Cl). When preparing its solution, it is necessary to dissolve it with concentrated hydrochloric acid and then dilute it to inhibit [...]

Preparation of nickel silicide nanowires

The molecular weight of nickel silicate is 145.51, the melting point is 1309℃, and the relative density is 7.217. Nickel silicate dissolves rapidly in hydrofluoric acid, slowly in hydrochloric acid, and insoluble in water. Nickel silicate reacts violently with fluorine at room temperature to white heat, and chlorine gas reacts with red heat. Nickel silicate decomposes in aqua regia. Method: The silicon oxide, nickel oxide (Ⅱ) and aluminum can be heated in the blast furnace. Metallic silicide has low resistivity, [...]

A test method for nickel chloride content hexahydrate

1. A test method for the content of nickel chloride hexahydrate is characterized in that the test method includes the following steps: a: take 1 volume of the liquid to be tested with a pipette to 5 volume volume bottles, add 1 volume of concentrated nitric acid, and then add 2 volume of ethylene glycol, and then use pure water to fill 5 volume parts to obtain liquid A; b: Take 1 liquid to be tested into a 5-volume [...]

Nano-ferric oxide and nano-ferric oxide

Nano iron oxide is produced by nano synthesis technology and high purity raw materials, with high purity, low impurity content, small particle size, uniform particle size, high temperature resistance, good dispersion and so on Nano ferric oxide is a new kind of nano material, which can be widely used in coating, paint, ink and chemical materials. Because of its small particle size, it has the characteristics of ultraviolet absorption, high chroma, high coloring power, high transparency, etc., and it is [...]

Properties and uses of cuprous oxide

1, Cuprous oxide can be dissolved in hydrochloric acid to generate HCuCl2 (cuprous chloride complex), can also be dissolved in sulfuric acid and nitric acid respectively to form copper sulfate and copper nitrate. 2. Although cuprous oxide is stable in dry air, it will be slowly oxidized in wet air to generate copper oxide, so it can be used as a deoxidizing agent; In addition, it is easy to reduce it to copper with reducing agent. 3, cuprous oxide is insoluble [...]

Properties and applications of nano-sized zinc ferrite

Ferrates of manganese, zinc, cobalt and nickel are important functional materials. Among them, Mn-Zn and Ni-Zn ferrite are the largest high frequency soft magnets in the world, which are commonly used as magnetic materials for high frequency transformers, inductors and recording heads. Ferrate is also an important catalyst, has been used in ammonia synthesis, Fischer-tropsch synthesis, as well as ethylbenzene, butene oxidation dehydrogenation reaction, it has broad application prospects in chemistry and chemical synthesis and other fields. Spinel zinc ferrite [...]

Role and application of niobium carbide

Niobium carbide is a green cubic crystal with metallic luster, belonging to the sodium chloride cubic crystal system. It has high melting point, high hardness (microhardness 235GPa, harder than corundum), good chemical stability (stable at 1 000~1 100℃, and rapid oxidation into niobium pentoxide above 1 100℃), insoluble hydrochloric acid, sulfuric acid and nitric acid, A mixture of hot hydrofluoric acid and nitric acid soluble only. Niobium carbide is easy to melt in titanium carbide, zirconium carbide, tungsten carbide [...]