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. 2021 Sep 22;8(22):2102540. doi: 10.1002/advs.202102540

Figure 12.

Figure 12

a) Schematic illustration for the step‐wise preparation of hierarchically porous GNP–silica composite beads. SEM images of GNP–silica composite beads showing b) porous structure and interconnected emulsion‐templated pores, and c) distribution of GNPs over silica surface. d) SEM image (cross‐sectional view) and e) energy‐dispersive X‐ray map of AO–GNP composite bead, and f) distribution of GNPs over AO surface. Adapted with permission.[ 222 ] Copyright 2006, Royal Society of Chemistry.