| LaNi5合金膜退火后的表面结构和氢敏特性 |
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| 引用本文： | 刘华容,陈侃松,刘俊峰,谢鲲,顾豪爽.LaNi5合金膜退火后的表面结构和氢敏特性[J].材料研究学报,2010,24(3). |
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| 作者姓名： | 刘华容 陈侃松 刘俊峰 谢鲲 顾豪爽 |
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| 作者单位： | 湖北大学物理学与电子技术学院,武汉,430062;湖北大学物理学与电子技术学院,武汉,430062;湖北大学物理学与电子技术学院,武汉,430062;湖北大学物理学与电子技术学院,武汉,430062;湖北大学物理学与电子技术学院,武汉,430062 |
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| 基金项目： | 湖北省自然科学基金2008CDB001; 湖北省教育厅青年人才项目Q200710007资助~~ |
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| 摘 要： | 通过在空气中退火来改善由磁控溅射方法制备的LaNi_5合金膜的表面结构,使其具有在室温下吸放氢的能力。借助原子力显微镜、X射线衍射和X射线光电子能谱,分析了LaNi_5合金膜退火前后的形貌、结构和表层成分。结果表明:在空气中退火后,LaNi_5合金膜比表面积增加,并在其表层形成了La_2O_3-Ni的表层结构。氢敏测试结果显示,在空气中退火的样品不需要在高压纯氢中活化,在室温下即对氢气响应,说明该合金膜可以作为氢气传感器的敏感层。
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| 关 键 词： | 金属材料 氢敏 LaNi5 退火 La2O3-Ni |
Study on the Surface Structure and Hydrogen Sensitivity of LaNi_5 Alloy Film Annealed |
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| LIU Huarong CHEN Kansong LIU Junfeng XIE Kun GU Haoshuang.Study on the Surface Structure and Hydrogen Sensitivity of LaNi_5 Alloy Film Annealed[J].Chinese Journal of Materials Research,2010,24(3). |
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| Authors: | LIU Huarong CHEN Kansong LIU Junfeng XIE Kun GU Haoshuang |
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| Affiliation: | LIU Huarong CHEN Kansong~(**) LIU Junfeng XIE Kun GU Haoshuang (Faculty of Physics , Electronic Technology,Hubei University,Wuhan 430062) |
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| Abstract: | LaNi_5 alloy films have been prepared by magnetron sputtering and annealed in air. The structure,surface morphology and elements composition of the films before and after annealing were analysed by X-ray diffraction,atomic force microscopy and X-ray photoelectron spectroscopy,respectively. The results showed that specific surface area of LaNi_5 films was increased and a kind of surface structure of La_2O_3-Ni was formed after annealing.The hydrogen sensitivity of the annealed samples was studied. The result... |
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| Keywords: | metallic materials hydrogen sensor LaNi_5 annealed La_2O_3-Ni |
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