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TiO 2 nanofibers are synthesized via a simple electrospinning method and coated on a silicon substrate with Pt electrodes to fabricate a micro-structure sensor. This sensor exhibits high ethanol sensing properties at 300 °C. The sensitivity is up to 4 when the sensor is exposed to 1 ppm ethanol, the response time is about 3 s, and the recovery is about 5 s.
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Liu et al. (2009) studied this question.
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