【作者】：Sun P (Sun Peng),Wang WN (Wang Weinan),Liu YP (Liu Yinping),Sun YF (Sun Yanfeng)*,Ma J (Ma Jian),Lu GY (Lu Geyu)
【题目】：Hydrothermal synthesis of 3D urchin-like α-Fe2O3 nanostructure for gas sensor
【关键词】：alpha-Fe2O3,Hydrothermal method,Hierarchical architectures,Gas sensor
【版面信息】：Sensors and Actuators B: Chemical 173 (2012) 52-57
摘要:
Urchin-likeα-Fe2O3nanostructures were obtained by a facile chemical solution route combined with subsequent calcination process. The images of field emission scanning electron microscopy and transmission electron microscopy indicated that these nanostructures were composed of one-dimensional nanorods with the diameter of about 40-50 nm and the length of about 800 nm. When tested as sensing materials for gas sensors, theseα-Fe2O3nanostructures exhibited high response, good response and recovery characteristics to ethanol at the operating temperature of 260℃. The response time was about 2s to 100 ppm ethanol.
