Fig. 8From: Facile Fabrication of Multi-hierarchical Porous Polyaniline Composite as Pressure Sensor and Gas Sensor with Adjustable SensitivitySEM images of microporous structure of PANI/sponge composite under different pressures with approximate compression ratio of a 0%, b 20%, c 40%, and d 60%. e SEM images of the composite after multiple pressures under different magnificationsBack to article page