摘要
以SnO2基底材料掺杂一定比例的TiO2,再掺入一定量的银离子(Ag+),制成复合基体材料,采用传统的旁热式气敏元件制造工艺,制作出甲醛气敏元件。对不同气体浓度、不同温度下元件的灵敏度及元件的响应-恢复时间进行了测试。结果表明,该气敏元件在工作温度为360℃下对甲醛气体的气敏性能最佳,灵敏度可达30,并且对乙醇具有一定的抗干扰性。
Gas sensor is prepared by nano SnO2 with the dopants of TiO2 and Ag^+ through conventional gas sensor technology. The sensitivity and the response-recovery time under different gas concentration and temperatures are measured. The results show that the gas sensor has best sensitivity at operation temperature 360℃, sensitivity to formaldehyde is 30 at this temperature, and has capability of anti-jamming to ethanol.
出处
《化学工业与工程技术》
CAS
2007年第5期6-8,共3页
Journal of Chemical Industry & Engineering
基金
甘肃省有色金属新材料国家重点实验室开放基金项目(SKL05004)
关键词
甲醛
二氧化锡
灵敏度
Formaldehyde
SnO2
Sensitivity