Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7149061 | Sensors and Actuators B: Chemical | 2012 | 6 Pages |
Abstract
Urchin-like α-Fe2O3 nanostructures 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, these α-Fe2O3 nanostructures exhibited high response, good response and recovery characteristics to ethanol at the operating temperature of 260 °C. The response time was about 2 s to 100 ppm ethanol.
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Authors
Peng Sun, Weinan Wang, Yinping Liu, Yanfeng Sun, Jian Ma, Geyu Lu,