Unraveling photoexcited electron transfer pathway of oxygen vacancy-enriched ZnO/Pd hybrid toward visible light-enhanced methane detection at a relatively low temperature

In this work, we present a novel CH4 oxidation photocatalyst based on oxygen vacancy-enriched ZnO nanorods/Pd nanoparticles hybrid (OV ZnO/Pd), which could be incorporated into a high-performance photocatalysis-enhanced CH4 sensor operating under visible light illumination at a relatively low temperature. By introducing visible light illumination, the CH4 response of the sensor based on OV ZnO/Pd was enhanced by 6 times compared to that in the...