摘要
用Ｘ射线光电子能谱分析研究了金属铀在ＣＯ气氛中２５℃和２００℃时的表面反应。ＣＯ在金属铀表层上的吸附反应导致了Ｕ４ｆ峰向低结合能方向位移，表层氧化物中氧含量减少，Ｏ／Ｕ比值随ＣＯ吸附量的增加而减少。研究结果表明ＣＯ气氛可抑制金属铀表面的进一步氧化。
The surface reactions of metal uranium with CO at 25℃ and 200℃ have been studied by the X-ray photoelectron spectroscopy (XPS). Adsorption of CO on the surface oxide layer will result in the U4f peak shifting to lower binding energy and the decreasing of oxygen content in surface oxides. The O/U ratio is decreased with increasing the exposure of CO to the surface layer. The investigation indicates that the CO atmosphere can suppress further oxidation on the surface of metal uranium.
出处
《核技术》
CAS
CSCD
北大核心
1998年第4期233-237,共5页
Nuclear Techniques
基金
中国工程物理研究院科学基金
