Nitrogen oxides are harmful to the environment as well as human being.Among various nitrogen oxides removal methods,direct catalytic decomposition into non-
As the crown of the permanent magnets,the rare-earth permanent magnet is a key material that supports modern society development and is bound up with people
Scintillation materials are employed to detect x-ray and gamma-ray photons,accelerated charged particles or even neutrons.Wide band-gap semiconductors or in