Enhanced gas-sensing performance of Au-modified ZnO nanoparticles synthesized using bamboo cellulose as a template

Yan Li; Fang-Xian Zhao; Xiao-Xue Lian

doi:10.1515/msp-2016-0107

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Enhanced gas-sensing performance of Au-modified ZnO nanoparticles synthesized using bamboo cellulose as a template

Materials Science-Poland

Volume 34 (2016): Issue 4 (December 2016)

By: Yan Li, Fang-Xian Zhao and Xiao-Xue Lian

Open Access

|Dec 2016

Abstract

Au-modified ZnO (Au/ZnO) nanoparticles (NPs) synthesized using bamboo cellulose template and calcination process were characterized using X-ray diffraction, field-emission scanning electron microscopy, and transmission electron microscopy. The gas-sensing performance of Au/ZnO NPs based sensors was also examined. The results indicated that the Au/ZnO NPs exhibited enhanced gas-sensing performance compared with that of pure ZnO. The response of the Au/ZnO NPs to 100 ppm ethanol (50) at 240 °C was nearly 2.7 times higher than that to acetone (18.4) and approximately 12.5 times higher than that to benzene (4.1), carbon monoxide (1.6), hydrogen (1.6), and methane (1.8), respectively, which demonstrated their higher selectivity to ethanol versus other gases. This high response to ethanol could be attributed to the small size, Schottky barrier, and catalysis.

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Articles in this issue

DOI: https://doi.org/10.1515/msp-2016-0107 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331

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Language: English

Page range: 708 - 714

Submitted on: Oct 29, 2015

Accepted on: Sep 11, 2016

Published on: Dec 17, 2016

Published by: Wroclaw University of Science and Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

Related subjects:

Materials sciences, other,

Nanomaterials,

Functional and smart materials,

Materials characterization and properties

© 2016 Yan Li, Fang-Xian Zhao, Xiao-Xue Lian, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 34 (2016): Issue 4 (December 2016)