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<p>In this study, gas sensors based on Er-doped ZnFe<sub>2</sub>O<sub>4</sub> nanofibers (E-ZFO NFs) with varying ratios of Er doping were prepared by a facile electrospinning approach. The sensor based on 3% E-ZFO NFs demonstrated an enhanced response value of 30.3 for 100&#xa0;ppm <i>n</i>-butanol at 175°C, with response and recovery times of 9&#xa0;s and 94&#xa0;s, respectively. This is approximately 3.1 times that of undoped ZFO NFs. Moreover, the sensor exhibited a minimum detection limit of 0.1&#xa0;ppm, with excellent repeatability and selectivity. These results indicate that the sensors utilizing E-ZFO NFs are promising candidates for <i>n</i>-butanol gas sensors.</p>

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Gas Sensing with Er-doped ZnFe2O4 Nanofibers Prepared by Facile Electrospinning

  • 期刊论文

  • 发表日期：

    2025年3月15日

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  • Lei Yue,
  • Bo Wang,
  • Yiheng Huang,
  • Changhao Feng

摘要

In this study, gas sensors based on Er-doped ZnFe2O4 nanofibers (E-ZFO NFs) with varying ratios of Er doping were prepared by a facile electrospinning approach. The sensor based on 3% E-ZFO NFs demonstrated an enhanced response value of 30.3 for 100 ppm n-butanol at 175°C, with response and recovery times of 9 s and 94 s, respectively. This is approximately 3.1 times that of undoped ZFO NFs. Moreover, the sensor exhibited a minimum detection limit of 0.1 ppm, with excellent repeatability and selectivity. These results indicate that the sensors utilizing E-ZFO NFs are promising candidates for n-butanol gas sensors.