原位生长与非原位生长的α-Fe2O3纳米阵列制备及气敏特性研究
Preparation and Gas-Sensitive Properties of α-Fe2O3 Nano-Arrays Grown in Situ and Non-Situ
DOI: 10.12677/OE.2023.131004, PDF,   
作者: 贺晓丽：天津工业大学物理科学与技术学院，天津
关键词: 原位生长；纳米阵列；氧化铁；In Situ Growth； Nano-Array； Iron Oxide
摘要: 本文主要采用水热法，用无水氯化铁和无水硫酸钠制备出在陶瓷管基底上原位生长的α-Fe2O3纳米棒阵列和无基底非原位生长的α-Fe2O3粉末纳米棒。利用扫描电子显微镜、X射线衍射、X射线光电子能谱镜等方法对制备所得的α-Fe2O3材料进行了形貌、元素组成等表征。通过气敏测试结果，表明原位生长气敏特性灵敏度值要高于非原位生长非原位生长，且都对丙酮气体具有最好的气敏特性，响应恢复时间短，稳定性好。说明原位生长的α-Fe2O3纳米阵列整齐有序，可提高材料气敏特性。
Abstract: In this paper, α-Fe2O3 nanorods arrays grown in situ on ceramic tube substrate and α-Fe2O3 powder nanorods grown in situ without substrate were prepared by hydrothermal method using anhydrous ferric chloride and anhydrous sodium nitrate. The morphology and elemental composition of α-Fe2O3 materials were characterized by scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The gas-sensitive test results show that the sensitivity value of in situ growth is higher than that of non-in situ growth and non-in situ growth, and both have the best gas-sensitive characteristics to acetone gas, short response recovery time and good stability. These results indicate that the α-Fe2O3 nanoarrays grown in situ are orderly and can improve the gas-sensitive properties of the materials.
文章引用：贺晓丽. 原位生长与非原位生长的α-Fe2O3纳米阵列制备及气敏特性研究[J]. 光电子, 2023, 13(1): 29-35. https://doi.org/10.12677/OE.2023.131004

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