کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
608701 | 880607 | 2011 | 4 صفحه PDF | دانلود رایگان |

WO3 nanofibers were synthesized using an electrospinning method and characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The obtained WO3 nanofibers were used as sensitive materials for the detection of NH3. Indirect-heating sensors based on WO3 nanofibers were prepared. When the WO3 nanofiber-based sensors were exposed to 100 ppm NH3 at 500 °C, the response is 5.5, and the response and recovery times are 1 and 5 s, respectively. These results indicate that the gas sensors based on WO3 nanofibers express high and fast response and recovery characteristics to NH3, and the WO3 nanofibers are promising sensitive materials for NH3 detecting.
The WO3 nanofibers prepared by an electrospinning method have fast response and recovery characteristics to different concentrations of NH3.Figure optionsDownload high-quality image (112 K)Download as PowerPoint slideResearch highlights
► In this paper, we prepared WO3 nanofibers by an electrospinning method.
► We systemically studied the gas-sensing properties of this material.
► The result indicates that the gas sensors based on WO3 nanofibers express high and fast response and recovery characteristics to NH3.
► The WO3 nanofibers are promising sensitive materials for NH3 detecting.
Journal: Journal of Colloid and Interface Science - Volume 356, Issue 1, 1 April 2011, Pages 54–57