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Ultra-sensitive Ag-LaFeO3 for selective detection of ethanol

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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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Acknowledgements

The project was supported by State Key Laboratory of Advanced Technology for Materials Synthesis and Processing (Wuhan University of Technology, Project No. 2021-KF-13) and Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology (BM2012110). The financial support was gratefully appreciated.

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Authors and Affiliations

  1. Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, China

    Fei Li, Qian Lv, Lun Gao & Xing Zhong

  2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China

    Fei Li & Jing Zhou

  3. Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, 213164, China

    Fei Li & Xiaoxin Gao

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  1. Fei Li
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  2. Qian Lv
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Correspondence to Fei Li.

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Li, F., Lv, Q., Gao, L. et al. Ultra-sensitive Ag-LaFeO3 for selective detection of ethanol. J Mater Sci 56, 15061–15068 (2021). https://doi.org/10.1007/s10853-021-06268-4

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