Improved acetone sensing properties of ZnO hollow nanofibers by single capillary electrospinning
Improved acetone sensing properties of ZnO hollow nanofibers by single capillary electrospinning
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DOI：
10.1016/j.snb.2011.08.059
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发表时间：
2011-12
影响因子：
8.4
通讯作者：
Shaohong Wei;Mei-hua Zhou;Weiping Du
中科院分区：
文献类型：
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作者：
Shaohong Wei;Mei-hua Zhou;Weiping Du
采用单毛细管静电纺丝法制备了实心和空心ZnO纳米纤维。采用X射线衍射（XRD）、场发射扫描电子显微镜（FESEM）、透射电子显微镜（TEM）和选区电子衍射（SAED）对样品进行了表征。还进行了两种样品之间的比较丙酮感测研究。结果表明，ZnO中空纳米纤维在220°C下对丙酮具有良好的选择性和稳定性，这归因于一维中空纳米结构。特别是，该传感器可以检测丙酮低至1ppm，具有明显的响应（7.1）。并对ZnO中空纳米纤维的形成机理和丙酮传感机理进行了探讨。
Solid and hollow ZnO nanofibers were fabricated through a facile single capillary electrospinning. The samples have been characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). A comparative acetone sensing study between the two samples were also performed. The results indicate that the ZnO hollow nanofibers show improved response to acetone at 220°C with good selectivity and stability, which is attributed to the 1D hollow nanostructure. Especially, the sensor can detect acetone down to 1ppm with obvious response (7.1). The formation mechanism and acetone sensing mechanism of the ZnO hollow nanofibers were also discussed.