研究生: |
李多加 Duo-Jia Lee |
---|---|
論文名稱: |
二氧化鈰中空球結構之 巨軌道順磁特性探討 Study of giant orbital paramagnetism of CeO2 hollow sphere structure |
指導教授: |
陳詩芸
Shih-Yun Chen |
口試委員: |
郭東昊
Dong-Hau Kuo 駱芳鈺 Fang-Yu Hlo |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 材料科學與工程系 Department of Materials Science and Engineering |
論文出版年: | 2021 |
畢業學年度: | 109 |
語文別: | 中文 |
論文頁數: | 111 |
中文關鍵詞: | 巨軌道順磁模型 、磁性 、缺陷 、中空球 、二氧化鈰 |
外文關鍵詞: | giant orbital paramagnetic model, magnetism, defects, hollow spheres, CeO2 |
相關次數: | 點閱:518 下載:0 |
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本研究首先利用水熱法製作出特定大小的碳球,再使用溶膠凝膠法將二氧化鈰奈米顆粒包覆在碳球上,得到不同厚度的二氧化鈰殼層,並利用煆燒進一步調查二氧化鈰中空球之殼層結構。合成的樣品以X光繞射儀、拉曼光譜、原子力顯微鏡、穿透式電子顯微鏡、X光吸收光譜進行結構分析,結合磁性量測結果,建立中空結構與磁性之關聯。
In this study, the carbon spheres of a specific size were prepared by hydrothermal method, and then sol-gel method was used to coat cerium oxide nanoparticles on the carbon spheres to obtain CeO2 shells with different thicknesses. Then, further investigation was carried out by annealing to get the CeO2 hollow sphere. The synthesized samples were analyzed by X-ray diffraction, Raman spectroscopy, atomic force microscope, transmission electron microscope, X-ray absorption spectroscopy, and combined with the magnetic measurement results to establish the correlation between hollow structure and magnetism.
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