Preliminary Study of Oxidation Kinetics of Cerium Under High Temperature Steam

Cerium is often used to simulate the corrosion behavior and transformation behavior of actinides such as uranium and plutonium, and its oxidation kinetics in water vapor has not been reported. In this study, the oxidation kinetics of cerium at high temperature in water vapor was studied by means of a thermogravimetric analyzer. The kinetics curve was obtained and the reaction process was discussed. The oxidation kinetics of cerium in water vapor conform to the rule of three-stage oxidation, and the main products after the reaction are CeO₂ and hydrogen.