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Journal of Materials Science

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22-06-2021 | Chemical routes to materials

Ultra-sensitive Ag-LaFeO₃ for selective detection of ethanol

Authors: Fei Li, Qian Lv, Lun Gao, Xing Zhong, Jing Zhou, Xiaoxin Gao

Published in: Journal of Materials Science | Issue 27/2021

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Abstract

Ag-LaFeO₃ was prepared by chemical reduction method with NaBH₄ ethanol solution. It can be seen from X-ray diffraction (XRD) that all samples are still perovskite structure. Two distinct Ag peaks were observed in X-ray photoelectron spectroscopy (XPS). The experimental results show that at 190 °C, the gas response of Ag-LaFeO₃ sensor to 100 ppm ethanol is 155, which is much higher than that of LaFeO₃ sensor. Meanwhile, the response time and recovery time are 30 s and 5 s, respectively. The results show that Ag-LaFeO₃ has excellent ethanol gas-sensing properties.

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Title: Ultra-sensitive Ag-LaFeO3 for selective detection of ethanol
Authors: Fei Li
Qian Lv
Lun Gao
Xing Zhong
Jing Zhou
Xiaoxin Gao
Publication date: 22-06-2021
Publisher: Springer US
Published in: Journal of Materials Science / Issue 27/2021
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-021-06268-4

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