| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7149669 | Sensors and Actuators B: Chemical | 2012 | 6 Pages |
Abstract
TiO2 nanotube arrays were prepared for use as gas sensors by anodizing Ti thin foils. Transmission electron microscopy revealed a tube diameter and length ranging from 70 to 120 nm and 300 to 400 nm, respectively. The TiO2 nanotube array sensors showed responses of 68,000 and 1,380,000% to 300 and 1000 ppm C2H5OH at 250 °C, respectively. These values are far superior to the responses obtained by most oxide one-dimensional nanostructures reported in the literature. In addition, the ethanol sensing mechanism of the TiO2 nanotube array sensors is discussed.
Related Topics
Physical Sciences and Engineering
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Authors
Youngjae Kwon, Hyunsu Kim, Sangmin Lee, In-Joo Chin, Tae-Yeon Seong, Wan In Lee, Chongmu Lee,