NH3 gas sensor based on PANI@Au-In2O3 sensitive material as well as preparation method and application of NH3 gas sensor

The invention relates to a flexible plane type NH3 gas sensor based on a PANI@Au-In2O3 sensitive material, a preparation method of the NH3 gas sensor and application of the NH3 gas sensor to the aspect of detecting NH3 at room temperature and in the atmospheric environment, and belongs to the technical field of gas sensors. The sensor consists of a flexible PET substrate and the PANI@Au-In2O3 sensitive material which grows on the surface of the PET substrate in situ. The sensor developed by the invention has high sensitivity, also has low detection lower limit and can detect the NH3 of 500 ppb; the sensitivity on the NH3 of 100 ppm can reach to 46; and very high selectivity and repeatability are shown. The flexible bendable plane type structure sensor is simple in manufacturing process, small in size, safe and harmless, and has important application value. 种基于PANI@Au-InO纳米敏感材料的柔性平面式NH气体传感器、制备方法及其在大气环境中室温下检测NH方面的应用，属于气体传感器技术领域。传感器是由柔性PET衬底、原位生长在PET衬底表面上的PANI@Au-InO纳米敏感材料组成。本发明所开发的传感器除了具有较高的灵敏度外，还具有较低的检测下限，可检测低