太原理工大学物理与光电工程学院
纸质出版:2021
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郭照青, 宋国庆, 曹恩思. MOF-5衍生In-ZnO纳米颗粒的丙酮气敏性能研究[J]. 传感器与微系统, 2021,(11):9-12+16.
郭照青, 宋国庆, 曹恩思. MOF-5衍生In-ZnO纳米颗粒的丙酮气敏性能研究[J]. 传感器与微系统, 2021,(11):9-12+16. DOI: 10.13873/J.1000-9787(2021)11-0009-04.
将溶剂热法制备的MOF-5粉体按照In/Zn摩尔比为0
0.05
0.10
0.15
0.20
0.25和0.30置于硝酸铟水溶液中
经干燥煅烧得到一系列In-ZnO纳米颗粒。X射线衍射仪(XRD)显示In-ZnO保持了ZnO的六角晶体结构
较大的In
3+
离子替换Zn
2+
导致了ZnO晶格的膨胀和应力的增加。SEM表明:In-ZnO纳米颗粒保持了纯ZnO的球形和立方介孔结构。气敏性能测试表明:In掺杂降低了ZnO元件的电阻值
提高了其对丙酮的气体响应
并降低了其最佳工作温度
其中In/Zn摩尔比为0.05的In-ZnO纳米颗粒由于较强的多孔性对应较大的比表面积
有利于氧和待测气体分子的吸附
表现出最佳的气敏性能
在200℃的最佳工作温度下对100×10
-6
丙酮的气体响应值为18.19
响应/恢复时间为2 s/8 s
同时具有很好的选择性和稳定性。
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Yuan-Chang Liang,Che-Wei Chang.Improvement of Ethanol Gas-Sensing Responses of ZnO–WO3 Composite Nanorods through Annealing Induced Local Phase Transformation[J].Nanomaterials,2019(5).
K. Kaviyarasu,Genene T. Mola,S. O. Oseni,K. Kanimozhi,C. Maria Magdalane,J. Kennedy,M. Maaza.ZnO doped single wall carbon nanotube as an active medium for gas sensor and solar absorber[J].Journal of Materials Science: Materials in Electronics,2019.
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Song Xue Zhi,Sun Fei Fei,Dai Shu Ting,Lin Xin,Sun Kai Ming,Wang Xiao Feng.Hollow NiFe2O4 microspindles derived from Ni/Fe bimetallic MOFs for highly sensitive acetone sensing at low operating temperatures[J].Inorganic Chemistry Frontiers,2018.
Ã. Ãzgür,Ya. I. Alivov,C. Liu,A. Teke,M. A. Reshchikov,S. DoÄan,V. Avrutin,S.-J. Cho,H. Morkoç.A comprehensive review of ZnO materials and devices[J].Journal of Applied Physics,2005.
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