cerium dioxide

When water vapor was used, the catalyst would strip out its oxygen to reform cerium dioxide.

Cerium dioxide has high refractive index and dielectric constant and ultraviolet absorption which may be useful for various optical and electronic applications.

Cerium dioxide ultrafine powder is prepared by electrochemical method using composite coating of In-Ru-Ir as anode, cerous nitrate and ammonium nitrate as electrolyte.