Al2O3-doped for enhancing ethanol sensing properties of α-Fe2O3 nanotubes
作者： Chang Su , Yu Li , Yue He , Li Liu , Xuesong Wang
DOI: 10.1016/J.MSSP.2015.04.043
关键词:
摘要: Abstract In this work, pure and Al2O3-doped α-Fe2O3 nanotubes were synthesized by a simple single-capillary electrospinning technology followed calcination treatment. The morphologies crystal structures of the as-prepared samples characterized scanning electron microscopy X-ray diffraction, respectively. research gas sensing properties demonstrates that ethanol are enhanced doping Al2O3, remarkably. response value to 50 ppm is 41.8 at operating temperature 240 °C, which much higher than (response 4). And lowest detection limit 300 ppb, about 2. recovery times 20 60 s–50 ppm ethanol, addition, possess good selectivity long-term stability.
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