Title Electrospinning preparation and room temperature gas sensing properties of porous In2O3 nanotubes and nanowires
Author: Xu, Lin; Dong, Biao; Wang, Yu; Bai, Xue; Liu, Qiong & Song, Hongwei
Sensors and Actuators B: Chemical, 2010
2010
http://www.sciencedirect.com/science/article/pii/S0925400510003229
More details: Porous In2O3 nanotubes (NTs) and nanowires (NWs) in cubic phase were fabricated via electrospinning and characterized by scan electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and \{N2\} adsorption experiments. The \{NTs\} had an average outer diameter of ?�?80\&\#xa0;nm and wall thickness of ?�?15\&\#xa0;nm, while the \{NWs\} had a diameter of ?�?120\&\#xa0;nm. The gas sensing properties of the prepared NTs/NWs were measured for H2S. The results demonstrate that the sensors had optimum and high responses to \{H2S\} at room temperature in dilute 1?��100\&\#xa0;ppm concentration range. They also display excellent selectivity, anti-interference and stability. The gas sensing mechanism at room temperature was attributed to the sulfuration of In2O3. The present electrospun In2O3 NTs/NWs have demonstrated the potential applied for \{H2S\} gas detection under room temperature. Electrospinning,Gas sensor,Indium oxide,Nanotubes,Nanowires
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