Enhanced ethanol sensing properties based on [alpha]-Fe^sub 2^O3/IN2O3 hollow microspheres

α-Fe^sub 2^O3 and IN2O3 hollow microspheres were synthesized via a simple green hydrothermal route, and the α-Fe^sub 2^O3/IN2O3 composite sample was prepared by mixing two products above together in a molar ratio of 1:1. Traditional ceramic tube structure gas sensors were fabricated and their gas se...

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Published in:Journal of materials science. Materials in electronics 2012-09, Vol.23 (9), p.1616
Main Authors: Han, Genliang, Lu, Qihai, Liu, Guohan, Ye, Xialei, Lin, Shumei, Song, Yuzhe, Liu, Bin, Yang, Xuhui, Li, Gongnong
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container_issue 9
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container_title Journal of materials science. Materials in electronics
container_volume 23
creator Han, Genliang
Lu, Qihai
Liu, Guohan
Ye, Xialei
Lin, Shumei
Song, Yuzhe
Liu, Bin
Yang, Xuhui
Li, Gongnong
description α-Fe^sub 2^O3 and IN2O3 hollow microspheres were synthesized via a simple green hydrothermal route, and the α-Fe^sub 2^O3/IN2O3 composite sample was prepared by mixing two products above together in a molar ratio of 1:1. Traditional ceramic tube structure gas sensors were fabricated and their gas sensing characteristics were obtained. The results indicated that the α-Fe^sub 2^O3/IN2O3 sample showed an improved sensitivity and selectivity to ethanol, compared with either α-Fe^sub 2^O3 or IN2O3 sample. Moreover, the sensitivities of both IN2O3 and α-Fe^sub 2^O3/IN2O3 sensors were good linear with gas concentrations (1-500 ppm) to ethanol, and the response was found to remain stable for 150 days. In addition, the gas sensing mechanism of ethanol detection has been discussed.[PUBLICATION ABSTRACT]
doi_str_mv 10.1007/s10854-012-0638-4
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title Enhanced ethanol sensing properties based on [alpha]-Fe^sub 2^O3/IN2O3 hollow microspheres
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