| 金属铀在氢氧化钠溶液中阳极氧化膜的XPS特性研究 |
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| 引用本文： | 伏晓国,汪小琳,郭焕军,王庆富,赵正平,钟永强.金属铀在氢氧化钠溶液中阳极氧化膜的XPS特性研究[J].核化学与放射化学,2002,24(2):65-69. |
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| 作者姓名： | 伏晓国 汪小琳 郭焕军 王庆富 赵正平 钟永强 |
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| 作者单位： | 中国工程物理研究院,四川,绵阳,621900 |
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| 基金项目： | 中国工程物理研究院基金资助项目 (2 0 0 0 0 5 5 8) |
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| 摘 要： | 采用X射线光电子能谱法（XPS）研究了金属铀在0．8mol/L NaOH溶液中阳极氧化膜的组成。结果表明，在本实验条件下，金属铀表面的阳极氧化膜主要由UO3和少量UO2 x组成；在超真空条件下，氧化膜中的部分 UO3逐渐还原成UO2 x。
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| 关 键 词： | 金属铀 氢氧化钠溶液 阳极氧化膜 XPS法 氧化腐蚀 阳极极化 |
| 文章编号： | 0253-9950(2002)02-0065-05 |
| 修稿时间： | 2001年9月19日 |
XPS CHARACTERIZATION OF THE ANODIC OXIDE FILM FORMED ON URANIUM METAL IN SODIUM HYDROXIDE SOLUTION |
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| FU Xiao guo,WANG Xiao lin,GUO Huan jun,WANG Qing fu,ZHAO Zheng ping,ZHONG Yong qiangChina Academy of Engineering Physics,P.O.Box.XPS CHARACTERIZATION OF THE ANODIC OXIDE FILM FORMED ON URANIUM METAL IN SODIUM HYDROXIDE SOLUTION[J].Journal of Nuclear and Radiochemistry,2002,24(2):65-69. |
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| Authors: | FU Xiao guo WANG Xiao lin GUO Huan jun WANG Qing fu ZHAO Zheng ping ZHONG Yong qiangChina Academy of Engineering Physics POBox |
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| Abstract: | X ray photoelectron spectroscopy (XPS) is used to examine the anodic oxide film formed on uranium metal in 0.8 mol/L NaOH solution. The U4 f 7/2 fitting spectra suggests that the anodic oxide film is composed of uranium trioxide and a small amount of UO 2+ x . Under UHV condition, the U4 f peak shifts to the lower binding energy, while a gradual increase in the intensity of U5 f peak and the broading of U4 f peak are also observed. All of these changes are due to reduction of uranium trioxide in the anodic oxide film. XPS quantitative analysis confirms the occurrence of reduction reaction. |
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| Keywords: | uranium sodium hydroxide solution anodic oxide film X ray photoelectron spectroscopy (XPS) |
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