Synthesis and characterization of SnO2 hollow nanofibers by electrospinning for ethanol sensing properties
Synthesis and characterization of SnO2 hollow nanofibers by electrospinning for ethanol sensing properties
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DOI：
10.1016/j.matlet.2014.05.151
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发表时间：
2014-09-15
影响因子：
3
通讯作者：
Gz, D. J.
中科院分区：
文献类型：
--
作者：
Cheng, L.;Ma, S. Y.;Gz, D. J.
本文采用静电纺丝技术和煅烧工艺制备了多孔SnO 2中空纳米纤维。采用X射线衍射仪、能量色散X射线检测仪、扫描电镜、透射电镜、Brunauer-Emmet-Teller等对空心SnO 2纳米纤维进行了表征，并研究了其对乙醇的气敏性能。结果表明，纳米SnO 2是由非常小的纳米颗粒（约20 nm）组成的，具有较大的比表面积（26.43 m2/g），粗糙多孔的中空纳米结构。计算的孔径大于4 nm。此外，基于这种中空结构的气敏传感器具有最佳工作温度为300 ℃，灵敏度高，响应快，对乙醇具有良好的选择性。(C)2014爱思唯尔有限公司版权所有。
In this work, porous SnO2 hollow nanofibers were fabricated by electrospinning technique and calcination procedure. The hollow SnO2 nanofibers were characterized by means of X-ray diffraction, energy dispersive X-ray detector, scanning electron microscopy, transmission electron microscopy, Brunauer-Emmet-Teller and the gas sensing properties for ethanol were also investigated. The results indicated that rough porous SnO2 hollow nanostructure with large specific surface area (26.43 m(2)/g) was composed of very small nanoparticles (about 20 nm). The pore size was calculated above 4 nm. Furthermore, the gas sensor based on this hollow structure has an optimum operating temperature of 300 degrees C, high sensitivity, quick response and good selectivity for ethanol. (C) 2014 Elsevier B.V. All rights reserved.