Synthesis of Ultrathin Ordered Porous Carbon through Bergman Cyclization of Enediyne Self-Assembled Monolayers on Silica Nanoparticles

A template approach was demonstrated to prepare ultrathin ordered porous carbon through Bergman cyclization of enediyne self-assembled monolayers on silica nanoparticles, followed by carbonization and template removal. The sizes of macropores can be finely tuned by adjusting the sizes of silica nanopartides. The structures of the carbonous products were characterized with scanning electron microscopy, transmission electron microscopy, nitrogen adsorption-desorption isotherm, and Raman spectroscopy. The results showed that these materials consisted of interconnected ordered macropores with ultrathin walls. Large BET surface areas (up to 1786 m(2)/g), large pore volumes (similar to 1.24 cm(3)/g), and partially graphitized frameworks were revealed for these materials. Depending on these excellent properties, potential applications would be expected.