Template-free fabrication of hierarchical porous carbon based on intra-/inter-sphere crosslinking of monodisperse styrene-divinylbenzene copolymer nanospheres

A novel type of hierarchical porous carbon has been successfully prepared by constructing intra- and inter-sphere -CO- crosslinking bridges of monodisperse styrene-divinylbenzene copolymer nanospheres. The -C ₆H₄- crosslinking bridges ensure good stability of the nanospheres during swelling and crosslinking, and the -CO- crosslinking bridges play an important role in achieving good nanostructure inheritability during carbonization.