The Au modified SnS₂ nano-flowers were synthesized, and the morphology and properties of the SnS₂ nano-flowers materials were optimized. Au modified SnS₂ nano-flowers chemiresistive-type sensors show better gas-sensing characteristics at low temperatures. At the optimal operating temperature of 100 °C, the response value (14.5) of Au/SnS₂ sensor to 8 ppm NO₂ is significantly higher than that (9.6) of the pristine SnS₂ nano-flowers based sensor, and the response and recovery time were also greatly reduced. The improved sensing properties can be attributed to the synergistic effect of the catalytic effect of Au NPs and the Schottky contact formed between Au NPs and SnS₂.

合成了Au修饰的SnS ₂纳米花，并对SnS ₂纳米花材料的形貌和性能进行了优化。Au修饰的SnS ₂纳米花化学电阻型传感器在低温下表现出更好的气敏特性。在 100 °C 的最佳工作温度下，Au/SnS ₂传感器对 8 ppm NO ₂的响应值 (14.5)显着高于原始 SnS ₂纳米花基传感器的响应值 ( 9.6) ，并且响应值和恢复时间也大大缩短。改进的传感性能可归因于 Au NPs 的催化作用和 Au NPs 与 SnS ₂之间形成的肖特基接触的协同作用.