Improved acetone sensing properties of ZnO hollow nanofibers by single capillary electrospinning

被引：157
作者：
Wei, Shaohong [1 ,2 ]
Zhou, Meihua [1 ]
Du, Weiping [3 ]
机构：
[1] Donghua Univ, Coll Environm Sci & Engn, Shanghai 200051, Peoples R China
[2] Anyang Normal Univ, Coll Chem & Chem Engn, Anyang 455000, Henan, Peoples R China
[3] Lib Donghua Univ, Shanghai 200051, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2011年 / 160卷 / 01期
关键词：
Semiconductor; Hollow nanofibers; Single capillary electrospinning; Acetone sensing; NANOCRYSTALLINE ZNO; GAS; SENSORS; FIBERS; ALPHA-FE2O3; NANOTUBES; SOLVENT;
D O I：
10.1016/j.snb.2011.08.059
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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 degrees C with good selectivity and stability, which is attributed to the 1D hollow nanostructure. Especially, the sensor can detect acetone down to 1 ppm with obvious response (7.1). The formation mechanism and acetone sensing mechanism of the ZnO hollow nanofibers were also discussed. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：753 / 759
页数：7
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