Copper oxide (molecular formula: CuO) is a black oxide of copper, slightly amphoteric, slightly hygroscopic. The relative molecular mass is 79.545. The property is stable and non-combustible, and has no special characteristics of combustion and explosion.
Copper oxide nanomaterials have surface effects, quantum size effects, volume effects and macroscopic quantum tunneling properties. Compared with ordinary copper oxides, nanoscales impart special electrical, optical and catalytic properties to copper oxide nanomaterials. The electrical properties of copper oxide nanomaterials make it sensitive to external environments such as temperature, humidity, light, etc. Therefore, the use of nano-copper oxide particles to cover the sensor can greatly improve the response speed, sensitivity and selectivity of the sensor. Nano-copper oxide can also be used as a burning rate catalyst for solid rocket propellants, which not only improves the burning rate of the propellant, but also reduces the pressure index. In terms of catalysis, nano-copper oxide can photocatalyticly degrade organic dyes. Nano-copper oxide can be used as a P-type semiconductor material, and is also a good photosensitive material. It is also used as a coloring agent for glass and ceramics, an exhaust gas purification material, a contact material, and the like.
The infrared absorption peak of nanometer copper oxide is obviously broadened and has obvious blue shift phenomenon. The blue shift phenomenon can be used to design a band-controllable light absorbing material, which shows a good application prospect in microwave absorption, radar wave absorption, and stealth fighter coating.