Technical Support

CeB6 cerium boride application in various industries

CeB6 cerium boride is a typical hexaboride, which has high melting point, high hardness, low escape work, good chemical stability, strong ion bombardment resistance, high electrical conductivity (its electrical resistivity is similar to rare earth metals) and other excellent properties, so it is widely used in various fields In the field of electronics industry, CeB6 cerium boride is an ideal hot cathode material, which is widely used in high-brightness point-like electron source equipment, such as SEM, TEM and other electron [...]

Application of nanometer molybdenum disulfide

Many researchers have performed typical catalytic hydrogenation of 1-methylnaphthalene to 1-methyltetrahydronaphthalene and 5-methylhydronaphthalene. The results show that the hydrogenation conversion rate of nanometer molybdenum disulfide is 5 times that of micron molybdenum disulfide at 350℃ using the same amount of micron (about 26 μm) molybdenum disulfide and 40nm molybdenum disulfide catalyst. The ratio of 1- methyltetraphthalene and 5- methyltetraphthalene in hydrogenated products was almost constant. The catalytic hydrogenation of naphthalene methylbenzyl showed that the activity of nano-molybdenum disulfide on [...]

Test method for alumina content in aluminium metaphosphate

Aluminum metaphosphate is a kind of raw material for optical glass, its purity directly affects the optical properties of optical glass. At present, there is no national standard test method for the purity detection of aluminum metaphosphate. The purity of aluminum metaphosphate in the industry is measured by testing the content of phosphorus pentoxide or alumina in aluminum metaphosphate, and then converted into the purity of aluminum metaphosphate by a certain coefficient. At present, the determination of phosphorus pentoxide content [...]

Lithium aluminum hydride reduction cyanide why accident

Two 1mol reduction reactions of the following compound 10 were carried out. The reaction operation was very standard, which was called argon flow. The whole reaction process was maintained at about 5 degrees Celsius, and the reaction was monitored after several hours of stirring. One of the 8L reactors was quenched with ice methanol. As soon as the first drop of methanol was added, an orange flame immediately appeared in the reactor and exploded. The reactor was destroyed, the [...]

Gadolinium zirconate material for thermal barrier coatings

Advanced aero-engine technology is one of the important symbols of a country’s scientific and technological level, industrial base and comprehensive national strength. In order to improve the performance of aeroengine, higher requirements should be put forward for turbine inlet gas temperature. Generally speaking, the temperature at the front inlet of a first-stage turbine with a thrust-to-weight ratio of 10 is about 1,950 K, and the temperature at the front inlet of a first-stage turbine with a thrust-to-weight ratio of [...]

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, [...]