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Published in: Journal of Materials Science 19/2017

28-06-2017 | Electronic materials

Enhancement of the acetone sensing capabilities to ppb detection level by Fe-doped three-dimensional SnO2 hierarchical microstructures fabricated via a hydrothermal method

Authors: Jie Hu, Ying Wang, Wenda Wang, Yan Xue, Pengwei Li, Kun Lian, Lin Chen, Wendong Zhang, Serge Zhuiykov

Published in: Journal of Materials Science | Issue 19/2017

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Abstract

Acetone detection at the parts-per-billion (ppb) level is achieved in this work using selective and optimized Fe doping of the three-dimensional (3D) flower-like SnO2 hierarchical microstructures. These structures were successfully synthesized via a one-step hydrothermal route. Detailed information about the crystal structure, surface morphology and composition of the Fe-doped SnO2 microstructures was investigated using X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) techniques. Gas sensing experiments were conducted on the as-prepared Fe-doped SnO2 sensors. The measured results show that the incorporation of Fe into the SnO2 structure can greatly enhance the gas sensing properties of SnO2 sensors under the optimum working temperature (200 °C). Specifically, the 1.0 mol% Fe-doped SnO2 microstructures exhibit the highest response, fast response/recovery time, lowest detection limit and good selectivity and long-term stability. The results demonstrate that the developed Fe-doped SnO2 gas sensor has great potential for ppb-level acetone detection in many practical applications.

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Appendix
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Metadata
Title
Enhancement of the acetone sensing capabilities to ppb detection level by Fe-doped three-dimensional SnO2 hierarchical microstructures fabricated via a hydrothermal method
Authors
Jie Hu
Ying Wang
Wenda Wang
Yan Xue
Pengwei Li
Kun Lian
Lin Chen
Wendong Zhang
Serge Zhuiykov
Publication date
28-06-2017
Publisher
Springer US
Published in
Journal of Materials Science / Issue 19/2017
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1319-8

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