Preparation method of vanadium dioxide gas sensor based on silver modification

The invention discloses a preparation method of a vanadium dioxide gas-sensitive sensor based on silver modification, relates to the technical field of semiconductor gas-sensitive sensors, and is used for solving the problem of nitrogen dioxide gas-sensitive sensing at room temperature. The method comprises the following steps: preparing a vanadium dioxide nanorod by a hydrothermal method; preparing silver sol; silver is compounded on the surface of vanadium dioxide through high-temperature annealing; the sensitive material is coated on the surface of the electrode through a dispensing method to prepare the gas sensitive element. The semiconductor metal oxide gas sensor can detect nitrogen dioxide gas under the room temperature condition, the problem of high working temperature of the gas sensor is solved, and the semiconductor metal oxide gas sensor has important research significance and application prospects in development of high-sensitivity low-temperature gas sensors. 本发明公开了基于银修饰的二氧化钒气敏传感器的制备方法，涉及半导体气敏传