Enhanced gas sensing performance of perovskite YFe1- x Mn x O3 by doping manganese ions

Aerzigu Xukeer; Zhaofeng Wu; Qihua Sun; Furu Zhong; Min Zhang; Mengqiu Long; Haiming Duan

doi:10.1039/d0ra01375g

Enhanced gas sensing performance of perovskite YFe_{1- x} Mn _x O₃ by doping manganese ions

RSC Adv. 2020 Aug 17;10(51):30428-30438. doi: 10.1039/d0ra01375g.

Authors

Aerzigu Xukeer¹, Zhaofeng Wu¹, Qihua Sun¹, Furu Zhong², Min Zhang¹, Mengqiu Long³, Haiming Duan¹

Affiliations

¹ School of Physics Science and Technology, Xinjiang University Urumqi Xinjiang 830046 P. R. China wuzf@xju.edu.cn dhm@xju.edu.cn.
² School of Physics and Electronic Science, Zunyi Normal College Zunyi 563006 Guizhou P. R. China.
³ Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University Changsha 410083 P. R. China.

Abstract

Perovskite YFe_1-x Mn _x O₃ with a hierarchical structure were prepared by a simple hydrothermal method and used as gas sensing materials. The structure, morphology and composition of YFe_1-x Mn _x O₃ were investigated using X-ray diffraction, transmission electron microscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. The gas sensing test showed that all YFe_1-x Mn _x O₃ 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 YFe_1-x Mn _x O₃ to four kinds of target atmospheres first increases, then decreases. The sensing performance of YFe_1-x Mn _x O₃ is best when x = 0.05. Compared with pure YFeO₃, the responses of YFe_0.95Mn_0.05O₃ 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 YFe_0.95Mn_0.05O₃ for H₂O₂ and CH₂O is 1.75 and 2.55 ppb, respectively. Furthermore, the possibility of buildings a sensor array based on YFe_1-x Mn _x O₃ 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.