GAS SENSOR AND METHOD FOR THE DETECTION OF HYDROGEN ACCORDING TO THE PRINCIPLE OF WORK FUNCTION MEASUREMENT, AND METHOD FOR THE PRODUCTION OF SUCH A GAS SENSOR

摘要

The invention relates to a gas sensor operating according to the principle of work function measurement for detecting hydrogen, hydrogen sulfide, and/or other gases that are chemically similar to hydrogen. The gas sensor comprises a sensitive layer (8), the work function of which is modifiable through adsorption on the sensitive layer of molecules of the gas that is to be detected. The gas sensor comprises a sensitive layer (8) containing platinum and optionally titanium. For example, an intermediate layer containing titanium is disposed between a layer containing platinum (8) and a carrier (6). The invention also relates to a method for producing such a gas sensor and a detection method corresponding thereto.