Journal
TALANTA
Volume 85, Issue 1, Pages 82-85Publisher
ELSEVIER
DOI: 10.1016/j.talanta.2011.03.033
Keywords
Co-doped; In2O3; Ethanol sensor; Continuous nanowires; Electrospinning
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Funding
- National Science Foundation
- Nebraska Research Initiative
- NSFC [51003036]
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Pristine and Co-doped In2O3 nanowires were synthesized via electrospinning with subsequent calcination. Scanning electron microscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy were used to characterize nanowire morphology and structure. Ethanol sensing performance analyzed in the range of temperatures and concentrations showed that Co-doped In2O3 nanowires exhibited significantly enhanced sensitivity and rate of performance with the response and recovery times of 2 s and 3 s. respectively. Combined with excellent selectivity and linearity, these properties make the fabricated nanowires a good candidate for practical ethanol sensing. Further performance improvements are possible with utilization of nanofiber continuity intrinsic of the used top-down nanowire nanomanufacturing process. (C) 2011 Elsevier B.V. All rights reserved.
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