Enhancement Ethanol Sensing Properties of NiO–SnO2 Nanofibers

Authors: Liu, Li1; Li, Shouchun1; Wang, Lianyuan1; Guo, Chuanchang2; Dong, Qiongye3; Li, Wei1

Source: Journal of the American Ceramic Society, Volume 94, Number 3, March 2011 , pp. 771-775(5)

Publisher: Wiley-Blackwell

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Abstract:

Pure and NiO–SnO2 nanofibers are synthesized via a simple electrospinning method, and characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The sensor fabricated from 5 mol% NiO–SnO2 nanofibers exhibits improved and excellent sensing properties to ethanol at 300°C. The response is up to 25.5 when the sensor is exposed to 100 ppm ethanol. The response and recovery times are about 2 and 3 s, respectively. The linear dependence of the sensitivity on the ethanol concentration is observed in the range of 5–500 ppm. Good selectivity is also observed in our studies. These results make NiO–SnO2 nanofibers good candidates for fabricating practical ethanol sensors.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2010.04137.x

Affiliations: 1: State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China 2: The Eleventh High School of Changchun City, Changchun 130026, China 3: College Instrumentation and Electrical Engineering, Jilin University, Changchun 130026, China

Publication date: March 1, 2011

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