Monthly Archives - April 2022

Discussion on the properties of aluminum nitride

Aluminum nitride (AlN) is a kind of advanced ceramic material with excellent comprehensive performance. It is a kind of new packaging material which is favored by domestic and foreign experts. It is also recognized as the most promising high thermal conductivity ceramic material at present. Research on it began more than a century ago, but it was only used as a nitrogen-fixing fertilizer. As a covalent compound, aluminum nitride is difficult to be sintered due to its high melting [...]

Manufacturing method of nano cobalt oxide

For the gradual maturity and stability of nanotechnology required nano-level items are also more and more, but for nano-level cobalt oxide should be how to make it, with the xiaobian take a look! (1) Preparation of cobalt salt solution: use nitric acid or sulfuric acid to dissolve cobalt metal to generate cobalt nitrate or cobalt sulfate aqueous solution after measuring the cobalt content in the solution of 50~ 300 g/l and free acid control in 20 g/l or less can [...]

The researchers studied the surface of cerium dioxide nanoparticles

At the Karlsruhe Institute of Technology (KIT), scientists have studied cerium dioxide nanoparticles using probe molecules and a sophisticated ultra-high vacuum infrared measurement system and gained new insights into their surface structure and chemical activity. Their work is reported in three papers in the journal Angewandte Chemie. Cerium oxide, oxygen compounds and the rare earth metal cerium are the most important oxides for technical applications. Cerium dioxide is mainly used in heterogeneous catalysis, such as exhaust gas catalytic converters in [...]