| 基于SnO2-La2O3掺杂的敏感材料CO2气敏特性研究 |
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| 引用本文： | 张正勇,赵雪宇.基于SnO2-La2O3掺杂的敏感材料CO2气敏特性研究[J].传感器与微系统,2011,30(10):59-61. |
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| 作者姓名： | 张正勇 赵雪宇 |
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| 作者单位： | 1. 中国科学院合肥物质科学研究院合肥智能机械研究所,安徽合肥230031;安徽省仿生感知与先进机器人技术重点实验室,安徽合肥230031;传感技术联合国家重点实验室,安徽合肥230031
2. 中国科学院合肥物质科学研究院合肥智能机械研究所,安徽合肥230031;中国科学技术大学化学与材料科学学院化学系,安徽合肥230021;安徽省仿生感知与先进机器人技术重点实验室,安徽合肥230031;传感技术联合国家重点实验室,安徽合肥230031 |
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| 基金项目： | 国家自然科学基金资助项目(60871040) |
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| 摘 要： | 以半导体氧化物SnO2为基体材料加入40％的活性La2O3材料,制备出了对CO2具有敏感性的气体敏感材料,其检测体积分数范围为(0～5000) ×10-6.实验结果表明:在SnO2-La2O3敏感材料的基础上掺杂适量CeO2,Ag2O,SiO2等氧化物,不仅提高了其对CO2气体的灵敏度,而且可以提高其稳定性,从而大大改...
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| 关 键 词： | 气体传感器 SnO2-La2O3 CO2敏感特性 掺杂 敏感机理 |
Study on sensitivity of sensitive material to CO_2 based on doped SnO_2-La_2O_3 |
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| ZHANG Zheng-yong,ZHAO Xue-yu.Study on sensitivity of sensitive material to CO_2 based on doped SnO_2-La_2O_3[J].Transducer and Microsystem Technology,2011,30(10):59-61. |
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| Authors: | ZHANG Zheng-yong ZHAO Xue-yu |
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| Affiliation: | ZHANG Zheng-yong1,3,4,ZHAO Xue-yu1,2,4(1.Hefei Institute of Intelligent Machines,Hefei Institute of Physical Science,Chinese Academy of Sciences,Hefei 230031,China,2.Department of Chemistry,School of Chemistry and Material Science,University of Science and Technology of China,Hefei 230021,3.Key Laboratory of Biomimetic Sensing and Advanced Robot Technology of Anhui Province,4.The United State Key Laboratory of Transducer Technology,China) |
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| Abstract: | A sensitive material is prepared with metal oxide semiconductor SnO2 and 40 % active La2O3,exhibits the sensitivity to CO2.The mixture can measure the volume fraction of CO2(0 ~5 000)×10-6.The experimental results show that the sensitivity and the stability of the SnO2-La2O3 sensitive material have been enhanced by the addition of appropriate amount of metal oxides as CeO2,Ag2O and SiO2.The mixture with the addition has a higher sensibility to CO2.On the basis of the experimental result of this series of materials,the mechanism of sensitivity to CO2 is analyzed and discussed.The CO2 gas sensor based on these sensitive materials has many advantages such as simple structure,easy preparation,convenient operation,low price.It can be used for environmental monitoring of air and agricultural greenhouses. |
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| Keywords: | gas sensor SnO2-La2O3 sensibility to CO2 doping sensitive machanism |
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