Last, sensing responses were also studied as a function of working temperature for different gases. Fig. 7 reports an overview of the obtained results as response to fixed concen-trations of analytes at different temperatures. As can be noticed, responses strongly depend on the operating tempera-ture and on the specific gas: methane underwent a progressive increase with an up to 500 1C working temperature, while nitrogen dioxide response decreases as a function of the operating temperature. Differently, hydrogen has an optimal response at 400 1C. These characteristics open interesting applicative perspectives to the selective detection of oxidizing and reducing gases, especially at low temperatures, where, for example, the response to NO2 exceeds by far the one pertaining to methane. Unfortunately, the response to hydrogen remains always greater than to the one to other species, in fact, the concentration is much higher compared to nitrogen