| α-Fe_2O_3中空微球的制备及其气敏特性 |
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| 引用本文： | 齐鹏嘉,张蕊,许一男,王丽丽,张彤.α-Fe_2O_3中空微球的制备及其气敏特性[J].吉林大学学报(理学版),2016,54(3):626-630. |
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| 作者姓名： | 齐鹏嘉 张蕊 许一男 王丽丽 张彤 |
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| 作者单位： | 1. 延边大学 工学院, 吉林 延吉 133002；2. 吉林大学 电子科学与工程学院, 集成光电子学国家重点联合实验室吉林大学实验区, 长春 130012 |
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| 摘 要： | 以Fe(NO_3)_3·9H_2O为铁源,不同氨基酸作为表面活性剂,通过水热法制备α-Fe_2O_3样品,并用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HRTEM)及X射线衍射(XRD)表征样品的形貌,测试其气敏性能.结果表明:不同表面活性剂所得α-Fe_2O_3样品的形貌不同,分别为实心粒子和中空微球,且中空微球由粒子堆积而成;基于中空微球的气体传感器对乙醇具有良好的敏感特性.
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| 关 键 词： | 中空微球 &alpha -Fe2O3 乙醇 水热法 气体传感器 |
| 收稿时间： | 2016-03-01 |
Preparation and Gas Sensing Properties ofα-Fe2O3 Hollow Microspheres |
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| QI Pengjia,ZHANG Rui,XU Yinan,WANG Lili,ZHANG Tong.Preparation and Gas Sensing Properties ofα-Fe2O3 Hollow Microspheres[J].Journal of Jilin University: Sci Ed,2016,54(3):626-630. |
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| Authors: | QI Pengjia ZHANG Rui XU Yinan WANG Lili ZHANG Tong |
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| Institution: | 1. College of Engineering Institute, Yanbian University, Yanji 133002, Jilin Province, China;2. State Key Laboratory on Integrated Optoelectronics, Jilin University Region, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China |
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| Abstract: | Using Fe(NO3)3·9H2O as Fe source and different amino acid as surfactant, α-Fe2O3 samples were prepared by hydrothermalmethod. We used scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM)and X ray diffraction (XRD) to characterize the morphology of the samples, andtest their gas sensing properties. The results show that the morphologies of α-Fe2O3 samples obtained from different surfactant are different, including solid particles and hollow microspheres (composed of particles). And the gas sensor based on hollow microsphere has good sensitive characteristic to ethanol. |
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| Keywords: | hollow microsphere α-Fe2O3 ethanol hydrothermal method gas sensor |
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