A PANI/WO₃@cotton thread-based flexible sensor that is capable of detecting NH₃ at room temperature is developed here. A layer of WO₃ with PANI nanoparticles can be deposited by in-situ polymerization. The morphology and structure of the specimens were investigated by utilizing TEM, SEM, XRD and FTIR. The sensing performance of the PANI/WO₃@cotton sensors with different WO₃ molar ratios to NH₃ at room temperature was examined. The results show that the optimal sensor (10 mol% WO₃) has a response of 6.0 to 100 ppm NH₃, which is significantly higher than that of the sensors based on pristine PANI and other composites. The PANI/WO₃@cotton sensor also displays excellent selectivity, gas response, and flexibility even at room temperature. The unique fiber structure, p-n heterojunction, and the increased protonation of PANI in the composites contribute to the enhanced sensing property.

在此开发了一种能够在室温下检测NH ₃的基于PANI / WO ₃ @棉线的柔性传感器。可以通过原位聚合沉积具有PANI纳米颗粒的WO ₃层。利用TEM，SEM，XRD和FTIR对样品的形貌和结构进行了研究。研究了室温下不同WO ₃摩尔比与NH ₃的PANI / WO ₃棉传感器的传感性能。结果表明，最佳传感器（10 mol％WO ₃）具有6.0至100 ppm NH ₃的响应，明显高于基于原始PANI和其他复合材料的传感器。即使在室温下，PANI / WO ₃棉传感器也显示出出色的选择性，气体响应和灵活性。复合材料中独特的纤维结构，pn异质结和PANI的质子化增强有助于增强传感性能。