| F含量对ZrO2纳米管形貌和相组成的影响 |
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| 引用本文： | 徐颖,刘宣勇,丁传贤.F含量对ZrO2纳米管形貌和相组成的影响[J].无机材料学报,2012,27(1):107-112. |
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| 作者姓名： | 徐颖 刘宣勇 丁传贤 |
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| 作者单位： | (1.中国科学院 上海硅酸盐研究所, 高性能陶瓷和超微结构国家重点实验室, 上海200050; 2. 中国科学院 研究生院, 北京100039; 3. 中国科学院 上海硅酸盐研究所, 特种无机涂层重点实验室, 上海200050) |
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| 摘 要： | 采用阳极氧化法在丙三醇+NH4F+5vol% H2O的电解液中制备了高度有序的ZrO2纳米管阵列, 详细考察了溶液中F含量(0.1~1.1 mol/L)对纳米管形貌﹑相结构和化学组成的影响. 利用扫描电子显微镜(SEM), X射线衍射仪(XRD)和X射线光电子能谱仪(XPS)对不同条件下制备的管径约90~130 nm, 管长约4.8~9.1 μm的纳米管形貌和结构进行了表征. 结果显示, 在含有0.7 mol/L NH4F的电解液中获得了高度有序且垂直导向的四方相ZrO2纳米管阵列, 而在较低浓度的电解液中制备的纳米管阵列为无定形结构, 较高浓度下纳米管阵列出现坍塌. 此外, 纳米管近表层处F/O原子比也随F-浓度的变化而变化.
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| 关 键 词： | ZrO2 纳米管阵列 氟 四方相 阳极氧化 |
| 收稿时间： | 2011-07-06 |
Effect of Fluoride Content on Morphology and Phase Composition of ZrO2 Nanotubes |
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| XU Ying,LIU Xuan-Yong,DING Chuan-Xian.Effect of Fluoride Content on Morphology and Phase Composition of ZrO2 Nanotubes[J].Journal of Inorganic Materials,2012,27(1):107-112. |
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| Authors: | XU Ying LIU Xuan-Yong DING Chuan-Xian |
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| Affiliation: | (1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China; 3. Key Laboratory of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China) |
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| Abstract: | The present research demonstrates the significant influence of fluoride content on the morphology, phase structure and chemical composition of ZrO2 nanotube arrays which were prepared via a direct electrochemical anodization of zirconium foil in glycerol-based electrolytes composed of 5vol% H2O and different contents of NH4F from 0.1 mol/L to 1.1 mol/L. The as-prepared nanotube arrays with external diameter of 90-130 nm and length of 4.8- 9.1 μm were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectrum (XPS). The results show that the highly ordered and vertically aligned tetragonal ZrO2 nanotube arrays can be obtained in the electrolyte containing 0.7 mol/L NH4F, and they become amorphous at lower NH4F concentration and collapse at higher NH4F concentration. Moreover, the F/O atomic ratio near the top surface of nanotubes is also dependent on the F- concentration in the electrolyte. |
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| Keywords: | ZrO2 nanotube arrays fluoride tetragonal phase anodization |
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