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<p>Gas sensors have potential application in numerous fields; thus, many studies have focused on the fabrication of high-performance devices. Two-dimensional nanomaterials (SnS<sub>2</sub>) have been reported as promising material for NO<sub>2</sub> detection owing to high absorption energy and high intrinsic conductivity. The gas-sensing capability can be controlled via tuning a material’s characteristics, including morphology and microstructure, which are easily modified by synthesis conditions. Here, layered SnS<sub>2</sub> nanomaterials were synthesized by a facile hydrothermal method, in which the correlation of reaction temperatures and NO<sub>2</sub> gas detection was systematically studied and discussed. We found that the sample prepared at 200°C within 24&#xa0;h showed the best NO<sub>2</sub> sensing performance, achieving a gas response of 163 toward 5&#xa0;ppm NO<sub>2</sub>. These results provide a viable strategy and deeper mechanistic insight into the preparation of high-performance NO<sub>2</sub> gas-sensing devices for pollutant monitoring applications.</p>

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Synthesis of SnS2 Nanosheets for Gas Sensors: Effect of Hydrothermal Temperatures

  • 期刊论文

  • 发表日期：

    2026年7月14日

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  • To Thi Nguyet,
  • Nguyen Pham Yen Nhi,
  • Dang Thi Thu Ha,
  • Pham Van Tong,
  • Nguyen Viet Nhat,
  • Pham Xuan Hien,
  • Tran Nguyen Anh Quan,
  • Chu Manh Hung,
  • Nguyen Van Duy,
  • Mingzhi Jiao,
  • Chu Thi Xuan,
  • Nguyen Duc Hoa

摘要

Gas sensors have potential application in numerous fields; thus, many studies have focused on the fabrication of high-performance devices. Two-dimensional nanomaterials (SnS2) have been reported as promising material for NO2 detection owing to high absorption energy and high intrinsic conductivity. The gas-sensing capability can be controlled via tuning a material’s characteristics, including morphology and microstructure, which are easily modified by synthesis conditions. Here, layered SnS2 nanomaterials were synthesized by a facile hydrothermal method, in which the correlation of reaction temperatures and NO2 gas detection was systematically studied and discussed. We found that the sample prepared at 200°C within 24 h showed the best NO2 sensing performance, achieving a gas response of 163 toward 5 ppm NO2. These results provide a viable strategy and deeper mechanistic insight into the preparation of high-performance NO2 gas-sensing devices for pollutant monitoring applications.