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SEM images of the monolayer of LbL LDH nanocrystals: 1 layer (L) (a); 3 L (b); and 5 L MgAl-LDH/Si (c); Cross-sectional views of 1 L (d); 2 L (e); 3 L (f); 4 L (g) and 5 L (h) samples. Reprinted with permission from [49], © American Chemical Society, 2007.
