A kinetic study of the oxidation of uranium dioxide

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• 作者：Sang Mun Jeong ; Kie-Chan Kwon ; Byung Heung Park and Chung-Seok Seo
• 关键词：Oxidation ; U3O8 ; uranium dioxide ; reaction kinetics
• 刊名：Reaction Kinetics and Catalysis Letters
• 出版年：2006
• 出版时间：August, 2006
• 年：2006
• 卷：89
• 期：2
• 页码：269-275
• 全文大小：67 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Sciences
  Catalysis
  Physical Chemistry
  Industrial Chemistry and Chemical Engineering
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1588-2837

文摘

A kinetic model for the oxidation of a UO₂ pellet is suggested by considering the mass transfer and the diffusion of oxygen molecules. The kinetic parameters were estimated by a fitting of the experimental data. The activation energies for the chemical reaction and the product layer diffusion were calculated from the kinetic model. The suggested model explains well the oxidation behavior of UO₂.