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H2-Sensing Characteristics of Nanocrystalline La0.8Pb0.2FeO3 Prepared by Sol–Gel Method

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Abstract

Nanocrystalline La0.8Pb0.2FeO3 has been prepared by the sol-gel method. XRD patterns show that the nanocrystalline La0.8Pb0.2FeO3 is a perovskite phase with the orthorhombic structure and its mean crystallite size is about 19 nm. The influence of Pb ions which replaced the La ions on A-sites can be directly observed from the electrical and sensing properties to H2 gas. The conductance of La0.8Pb0.2FeO3-based sensor is considerably higher than that of LaFeO3-based sensor, and Pb-doping can enhance the sensitivity to H2 gas. An empirical relationship of \(R=K {C^{\alpha}_{H_{2}}}\) with α = 0.668 was obtained.

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Authors and Affiliations

  1. Department of Physics and Microelectronics, Shandong University, Jinan, 250100, People’s Republic of China

    Peng Song, Jifan Hu, Hongwei Qin & Ling Zhang

  2. Shanghai Institute of Optics and Fine Mechanics, Shanghai, 201800, People’s Republic of China

    Tianfeng Xue

  3. Department of Physics and Microelectronics, Shandong University, Jinan, 250100, People’s Republic of China

    Xing Liu & Shanxing Huang

  4. State Key Laboratory for Crystal Materials, Shandong University, Jinan, 250100, People’s Republic of China

    Minhua Jiang

Authors
  1. Peng Song
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  2. Jifan Hu
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  3. Hongwei Qin
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  4. Ling Zhang
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  5. Tianfeng Xue
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  6. Xing Liu
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  7. Shanxing Huang
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  8. Minhua Jiang
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Correspondence to Jifan Hu.

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Song, P., Hu, J., Qin, H. et al. H2-Sensing Characteristics of Nanocrystalline La0.8Pb0.2FeO3 Prepared by Sol–Gel Method. J Sol-Gel Sci Technol 35, 65–68 (2005). https://doi.org/10.1007/s10971-005-3216-x

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  • DOI: https://doi.org/10.1007/s10971-005-3216-x

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