W. Mullins—contributing editor
Synthesis, Characterization, and m-Xylene Sensing Properties of Co–ZnO Composite Nanofibers
Article first published online: 13 APR 2011
© 2011 The American Ceramic Society
Journal of the American Ceramic Society
Volume 94, Issue 10, pages 3437–3441, October 2011
How to Cite
Liu, L., Zhong, Z., Wang, Z., Wang, L., Li, S., Liu, Z., Han, Y., Tian, Y., Wu, P. and Meng, X. (2011), Synthesis, Characterization, and m-Xylene Sensing Properties of Co–ZnO Composite Nanofibers. Journal of the American Ceramic Society, 94: 3437–3441. doi: 10.1111/j.1551-2916.2011.04528.x
This work was financially supported by the Department of Environmental Protection of Jilin Province (No. 2009-22), Jilin Provincial Science & Technology Department (No. 20100344), and the national innovation experiment program for university students (No. 2009C65125 and 2010C65188).
- Issue published online: 4 OCT 2011
- Article first published online: 13 APR 2011
- Manuscript No. 28816. Received October 24, 2010; approved February 23, 2011.
Co–ZnO composite nanofibers (0, 0.2, 0.4, and 0.8 wt%) are synthesized by electrospinning and calcination techniques. The fiber diameters are found to decrease by increasing the Co content in the ZnO nanofibers. The m-xylene sensing properties of the ZnO nanofibers are effectively enhanced with appropriate Co amount. The best sensing properties are found based on the 0.4 wt% Co–ZnO composite nanofibers at 320°C. The corresponding response is up to 14.8 when the sensor is exposed to 100 ppm m-xylene, and the response and recovery times are about 4 and 6 s, respectively. Moreover, excellent selectivity is also observed in the sensing investigation. The results make Co–ZnO composite nanofibers good candidates for fabricating high performance m-xylene sensors.