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。
In order to monitor the dissolved gases in oil of transformer and predict the latent fault accurately, several one dimension （l-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.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2013年第3期50-53,共4页
Electronic Components And Materials
基金
国家自然科学基金青年科学基金资助项目(No.51202302)
重庆市自然科学基金资助项目(No.cstc2012jjA50011)
中国博士后面上基金资助项目(No.2012M510928)
重庆大学中央高校基本科研业务经费资助项目(No.CDJZR12110051)
关键词
SNO2
一维纳米
气敏传感器
微结构
乙炔
灵敏度
纳米花
SnO2
one dimension nanosized
gas sensor
microstructure
acetylene
sensitivity
nanosized flower
