Synthesis and acetone gas sensing properties of α-Fe_2O_3 nanotubes

作     者：SHAN Hao LIU ChangBai LIU Li WANG LianYuan LI ShouChun ZHANG XiaoBo BO XiaoQing CHI Xiao 

作者机构：State Key Laboratory of Superhard Materials College of Physics Jilin University College of Electronic Science & Engineering Jilin University 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2013年第56卷第12期

页      面：1722-1726页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the Jilin Environment Office(2009-22) Jilin Provincial Science and Technology Department(20100344) the National Innovation Experiment Program for University Students(2010C65188) 

主　　题：nanotubes gas sensor electrospinning 

摘      要：α-Fe2O3 nanotubes was successfully prepared by single nozzle electrospinning method. Scanning electron microscope （SEM） was used to characterize the morphology of α-Fe2O3 nanotubes. The gas sensing properties of α-Fe2O3 nanotubes were investigated in detail. The results exhibit relatively good sensing properties to acetone at 240℃. The response and recovery times are about 3 and 5 s, respectively. The structure of nanotubes is beneficial to the gas sensing properties, which will enlarge the surface-to-volume ratio of α-Fe2O3 and then be available for the transfer of gas, and thus improved the sensor performance consequentially.