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<p>Triboelectric nanogenerators (TENG) as gas sensor is a strategy for detection that does not require power source. This study prepared Ag/Bi<sub>2</sub>WO<sub>6</sub> composite as a triboelectric layer in a TENG device. Incorporating Ag particles improved output performance. Additionally, self-powered gas sensor (SPGS) based on 2% Ag/Bi<sub>2</sub>WO<sub>6</sub> exhibited a response of 27.6% to 100&#xa0;ppm ethanol with response/recovery times (72.7/81&#xa0;s). SPGS also have a lower limit of detection (LOD) as 2.7&#xa0;ppm. The enhanced gas-sensitive performance to the catalytic effect of Ag, which facilitated the adsorption and desorption of ethanol gas molecules. This work demonstrating the potential application of multi-element metal oxides in ethanol detection was demonstrated.</p>

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Ag/Bi2WO6-based triboelectric nanogenerators for self-powered ethanol sensor

  • 期刊论文

  • 发表日期：

    2025年4月19日

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  • Xiaoran Gong,
  • Haohao Zhang,
  • Jiachen Ye,
  • Chengjia Din,
  • Tao Chen,
  • Xue Li

摘要

Triboelectric nanogenerators (TENG) as gas sensor is a strategy for detection that does not require power source. This study prepared Ag/Bi2WO6 composite as a triboelectric layer in a TENG device. Incorporating Ag particles improved output performance. Additionally, self-powered gas sensor (SPGS) based on 2% Ag/Bi2WO6 exhibited a response of 27.6% to 100 ppm ethanol with response/recovery times (72.7/81 s). SPGS also have a lower limit of detection (LOD) as 2.7 ppm. The enhanced gas-sensitive performance to the catalytic effect of Ag, which facilitated the adsorption and desorption of ethanol gas molecules. This work demonstrating the potential application of multi-element metal oxides in ethanol detection was demonstrated.