水热法制备Fe_2O_3微米球及其气敏性能研究  

Hydrothermal Synthesis of Fe_2O_3 Microspheres and Their Gas Sensing Properties

作　　者：廖海波[1] 段国韬[2] 

机构地区：[1]安徽神剑科技股份有限公司,安徽合肥230601 [2]中国科学院固体物理研究所,安徽合肥230031

出　　处：《安徽师范大学学报（自然科学版）》2016年第6期542-545,共4页Journal of Anhui Normal University(Natural Science)

基　　金：国家自然科学基金项目(51471161)

摘　　要：半导体电阻式气体传感器具有灵敏度较高、响应迅速、制备成本较低、易于小型化等优点,已经成为近年来传感器研究的重点.本文通过水热法制备出Fe_2O_3微米球并研究其对酒精的气敏性能.结果显示制备的Fe_2O_3微米球纯度高,表面粗糙,对酒精气体显示出优异的响应特性,具有灵敏度高、稳定性好和优异浓度线性特征等特点.这项工作将为高性能酒精气体检测仪提供新的候选材料.Recently, the resistance-type metal oxide semiconductor gas sensors have already become a hot point in gas sensor research, due to the high detection sensitivity; quick response, low cost in preparation and easy miniaturization. In this paper, the Fe2O3 micro-spheres were synthesized by hydrothermal method and their gas sensing properties to ethanol were studied. It was found that gas sensors based on Fe2O3 micro-spheres showed excellent gas performances to ethanol with high sensitivity, nice stability and fine liner rolationship with concentration, which will bring a new candidate for the ethanol detector.

关 键 词：Fe2O3微米球 半导体气体传感器 检测下限 

分 类 号：TN3[电子电信—物理电子学]