“…As stated above in Figure , the choice of carbon materials, cross-linkers, and optional additives provide a toolbox to customize composition, structure, and function. For instance, the porosity may also be modulated with the assistance of not only organic porogens (Figure c) but also other types (e.g., sodium chloride, silica, or polystyrene particles) followed by leaching of the porogen , or temperature annealing. , Additional changes in chemical properties (e.g., hydrophobicity) and/or physical properties (e.g., electrical, thermal, or magnetic properties) would require functionalization of the carbon material or incorporation of atoms or molecules into the carbon slurry (e.g., copper to modulate electrical conductivity or iron to modulate magnetic properties). Alternatively, the carbon microbead’s external surface could be further functionalized through modifications .…”