Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 224, Issue -, Pages 478-484Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.10.083
Keywords
Ethanol; Gas sensor; SnO2; Selectivity; Basic catalysis
Funding
- Special Strategic Funds for Development of Emerging Industry of Shenzhen [JCYJ20120616220509842]
- Fundamental Research Project of Shenzhen [JCYJ 20140902110354246]
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An ethanol-sensing powder (La2O3@Sb-SnO2), mixture composed of 1.00 wt.% La2O3 and 99.00 wt.% Sb-doped SnO2 (Sb-SnO2), was found to possess enhanced sensitivity towards ethanol: typically, for La2O3@Sb-SnO2, the ratio of the response towards 1000 ppm ethanol vapor to that of 1000 ppm CO is 26.1 (60.012.3) under operating temperature of 250 degrees C; while for Sb-SnO2, the ratio is only 4.5 (9.012.0). A suggestive mechanism on enhanced ethanol sensing is discussed. (C) 2015 Elsevier B.V. All rights reserved.
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