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Representative TEM images of selected Mg1−xAlx(OH)2(An−)x/n·mH2O LDHs. An− = NO3−, x = (a) 0.20, (b) 0.25, (c) 0.33. An− (x = 0.25), (d) Cl−, (e) I−, (f) CO32−, (g) SO42−. All samples shows the typical house-of-card morphology, and the particles have similar platelet thickness and size.
