Fig. 3From: The effect of freezing speed and hydrogel concentration on the microstructure and compressive performance of bamboo-based cellulose aerogelPhotography of aerogels with different density (a), SEM images of aerogel with density of 0.50 mg/cm3 (b, c), 1.05 mg/cm3 (d, e), 2.39 mg/cm3(f, g) and 10.19 mg/cm3 (h, i)Back to article page