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Erschienen in: Journal of Materials Science 9/2018

22.01.2018 | Electronic materials

Gas-sensing properties of composites of Y-zeolite and SnO2

verfasst von: Qingpan Huang, Jing Wang, Yanhui Sun, Xiaogan Li, Xiaofeng Wang, Ziyao Zhao

Erschienen in: Journal of Materials Science | Ausgabe 9/2018

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Abstract

Y-zeolite was first modified by means of ions exchange with Al, Ca and Na, respectively. The modified materials were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and inductively coupled plasma optical emission spectrometry (ICP-OES). Gas sensors were fabricated by SnO2 and coating Y-zeolites on the outside of SnO2 surface, respectively. It was found that the responses of the composites of all types of zeolite- and SnO2-based sensors became lower comparing with that of the pure SnO2-based one response of SnO2 sensor to ethanol vapor. It indicates a suppression effect of zeolites on the response to ethanol vapor. In contrast, the response of the composite-sensing materials of the modified Y-zeolite/SnO2-based sensors except the Ca-modified one to acetone indicates a significantly improved response, 2–3 times higher than that of pure SnO2-based sensor which is smaller than the one of SnO2 sensor. The possible mechanism of the effects of the Y-zeolites on the response of the sensors has been discussed.

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Metadaten
Titel
Gas-sensing properties of composites of Y-zeolite and SnO2
verfasst von
Qingpan Huang
Jing Wang
Yanhui Sun
Xiaogan Li
Xiaofeng Wang
Ziyao Zhao
Publikationsdatum
22.01.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 9/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-2016-y

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