| 一维纳米SnO_2传感器对变压器油中气体的检测 |
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| 引用本文： | 李艳琼,曾文,谢国亚. 一维纳米SnO_2传感器对变压器油中气体的检测[J]. 电子元件与材料, 2013, 32(3) |
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| 作者姓名： | 李艳琼 曾文 谢国亚 |
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| 作者单位： | 1. 重庆邮电大学移通学院数理教学部,重庆,401520
2. 重庆大学材料科学与工程学院,重庆400044;重庆大学重庆输配电装备及系统安全与新技术国家重点实验室,重庆400044 |
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| 基金项目： | 国家自然科学基金青年科学基金资助项目，重庆市自然科学基金资助项目，中国博士后面上基金资助项目，重庆大学中央高校基本科研业务经费资助项目 |
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| 摘 要： | 为准确在线监测电力变压器油中溶解气体,预测其潜伏性故障,通过水热法合成了多种一维纳米SnO2材料,并以其作为气敏材料制作了旁热式气体传感器,研究了其对变压器油中析出气体乙炔的气敏性能。结果显示,各元件表现出不同的气敏性能,其中花状纳米SnO2对乙炔气体的敏感性能最优,在360℃的工作温度下,其对体积分数为1×10–4的乙炔的灵敏度达到38,响应和恢复时间分别为15 s和28 s。
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| 关 键 词： | SnO2 一维纳米 气敏传感器 微结构 乙炔 灵敏度 纳米花 |
Gas sensing characteristics of one dimension nanosized SnO2 sensor in transformer oil detection |
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| Abstract: | In order to monitor the dissolved gases in oil of transformer and predict the latent fault accurately,several one dimension(1-D) SnO2 nanosized materials were prepared by hydrothermal method.Using these nanosized materials,the side heating gas sensors were prepared and their gas sensing properties to C2H2 in transformer oil were investigated.The results show that each sensor presents different sensing properties,and the sensor fabricated with flower-likes nanosized SnO2 shows the best sensing performance towards C2H2.The sensitivity of this sensor is 38 to C2H2 with the volume fraction of 1×10–4 at 360 ℃,moreover,the gas response and recovery times of the sensors are 15 s and 28 s,respectively. |
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| Keywords: | SnO2 one dimension nanosized gas sensor microstructure acetylene sensitivity nanosized flower |
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