In this study, we prepare dispersed MoS ₂ nanosheets by water bath ultrasonic stripping method uniformly. The MoS ₂ nanosheets are characterized by SEM, TEM and XRD, and then the gas formic acid is detected in detail. The experimental results show that the sensor patterned with MoS ₂ nanosheets has high response to formic acid gas with the response time of 11s, and the recovery time of 17s. The sensor exhibits excellent selectivity, repeatability and stability under a linear relationship between the resistance of the sensor and the gas concentration.

中文翻译：

---

基于MoS ₂纳米片的高响应甲酸气体传感器

在这项研究中，我们通过水浴超声剥离法均匀地制备分散的MoS ₂纳米片。通过SEM，TEM和XRD对MoS ₂纳米片进行表征，然后详细检测气体甲酸。实验结果表明，采用MoS ₂纳米片构图的传感器 对甲酸气体具有较高的响应速度，响应时间为11s，恢复时间为17s。在传感器的电阻与气体浓度之间呈线性关系时，该传感器具有出色的选择性，可重复性和稳定性。