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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering , Engineering, Electrical & Electronic


eISSN: 1178-5608



VOLUME 5 , ISSUE 3 (September 2012) > List of articles


A. M. El-Sayed * / F. M. Ismail / M. H. Khder / M. E. M. Hassouna / S. M. Yakout

Keywords : ZnO nanoparticles, Ce-doping, ethanol gas sensor.

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 5, Issue 3, Pages 606-623, DOI: https://doi.org/10.21307/ijssis-2017-498

License : (CC BY-NC-ND 4.0)

Received Date : 30-June-2012 / Accepted: 03-August-2012 / Published Online: 01-September-2012



Nanocrystalline sensors having the general formula ZnO + x wt% CeO2, where x = 0, 2, 4 and 6 were prepared by chemical precipitation method and sintered at 400, 600 and 800 oC for 2h in static air atmosphere. The crystal structure and the morphology of the prepared samples were investigated and characterized by using XRD, IR, SEM and TEM techniques. The investigation revealed that the average crystallites size increases with increasing the sintering temperature. The electrical conductivity is found to increase with CeO2 additions and sintering temperature. Gas sensing properties of the prepared samples were also investigated. The effect of CeO2 content and sintering temperature on the structure, electrical conductivity and ethanol gas sensing properties of the prepared samples are discussed.

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