Gas sensing properties of graphene-WO3 composites prepared by hydrothermal method

- The amount of graphene had an effect on the morphology of graphene-WO3 composites.
- The optimum temperature of 0.1 wt% graphene-WO3 sensor to acetaldehyde was 100 °C.
- 0.1 wt% graphene-WO3 sensor exhibited good selectivity to acetaldehyde at 100 °C.