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<p>Two dimensional (2D) hybrids with the particular advantages of synergistic effects and single components have received attention of gas-sensing field. In this work, we prepared the hybrid of carbon quantum dots (CQDs) and 2D Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> through a facile physical blending approach. The fabricated sensor based on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/CQDs hybrid achieved a response of 355% toward 100&#xa0;ppm NH<sub>3</sub>, while the responses of pure CQDs and Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> sensors were only 30 and 6.6%, respectively. In addition, the hybrid sensor demonstrated good operational stability and superior selectivity against interfering gases. This work provides useful reference for developing high performance gas sensors.</p>

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Enhanced ammonia sensing response based on Ti3C2Tx-CQDs hybrid at room temperature

  • 期刊论文

  • 发表日期：

    2026年4月20日

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  • Haifeng Zhang,
  • Yankai Wang,
  • Xinyue Wang,
  • Guangchao Yin,
  • Lingling Du,
  • Meiling Sun

摘要

Two dimensional (2D) hybrids with the particular advantages of synergistic effects and single components have received attention of gas-sensing field. In this work, we prepared the hybrid of carbon quantum dots (CQDs) and 2D Ti3C2Tx through a facile physical blending approach. The fabricated sensor based on Ti3C2Tx/CQDs hybrid achieved a response of 355% toward 100 ppm NH3, while the responses of pure CQDs and Ti3C2Tx sensors were only 30 and 6.6%, respectively. In addition, the hybrid sensor demonstrated good operational stability and superior selectivity against interfering gases. This work provides useful reference for developing high performance gas sensors.