期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 213, 期 -, 页码 493-500出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.03.002
关键词
ZnO sol-gel films; ZnO nanorods; Pt nanoparticles; Optical gas sensors
资金
- Italian PRIN [2009ALAX7Y]
- UNSW Australia
ZnO sol-gel films, with and without embedded Pt nanoparticles, were used as seeding layers for the hydrothermal growth of ZnO nanorods. The morphology of the nanorods was controlled by adjusting the chemistry and processing, yielding samples with high transparencies and exposed surface areas. The prepared samples were assessed for performance as optical gas sensors in terms of absorbance variation and response time and these data were correlated with the structural properties. The nanorods grown on ZnO films containing Pt nanoparticles showed excellent H-2-sensing properties owing to the high exposed surface areas of the ZnO nanorods and to the catalytic effect the underlying Pt nanoparticles. (C) 2015 Elsevier B.V. All rights reserved.
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