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Issue 51, 2020, Issue in Progress
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Enhanced gas sensing performance of perovskite YFe1−xMnxO3 by doping manganese ions

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Abstract

Perovskite YFe1−xMnxO3 with a hierarchical structure were prepared by a simple hydrothermal method and used as gas sensing materials. The structure, morphology and composition of YFe1−xMnxO3 were investigated using X-ray diffraction, transmission electron microscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. The gas sensing test showed that all YFe1−xMnxO3 perovskites with different Mn doping concentrations displayed fast response and recovery characteristics to multiple analytes as well as good stability and recoverability. With the increase of Mn doping concentration, the response of YFe1−xMnxO3 to four kinds of target atmospheres first increases, then decreases. The sensing performance of YFe1−xMnxO3 is best when x = 0.05. Compared with pure YFeO3, the responses of YFe0.95Mn0.05O3 to 1000 ppm of CH2O, C2H6O, H2O2 and 100% relative humidity were increased by 835%, 1462%, 812% and 801%, respectively. The theoretical detection limit of YFe0.95Mn0.05O3 for H2O2 and CH2O is 1.75 and 2.55 ppb, respectively. Furthermore, the possibility of buildings a sensor array based on YFe1−xMnxO3 with different doping concentrations was evaluated by principal component analysis and radar chart analysis. It is feasible to realize the visual and discriminative detection of the target analyte by constructing sensor arrays through radar chart analysis and database construction.

Graphical abstract: Enhanced gas sensing performance of perovskite YFe1−xMnxO3 by doping manganese ions

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Supplementary files

Article information


Submitted
12 Feb 2020
Accepted
09 Aug 2020
First published
17 Aug 2020

This article is Open Access

RSC Adv., 2020,10, 30428-30438
Article type
Paper

Enhanced gas sensing performance of perovskite YFe1−xMnxO3 by doping manganese ions

A. Xukeer, Z. Wu, Q. Sun, F. Zhong, M. Zhang, M. Long and H. Duan, RSC Adv., 2020, 10, 30428
DOI: 10.1039/D0RA01375G

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