Carbon materials with controlled pore sizes at the nanometer level have been obtained by template methods, chemical vapor desorption, and extraction of metals from carbides. However, to produce porous carbons with controlled pore sizes at the Ångstrom-level, syntheses that are simple, versatile, and reproducible are desired. Here, we report a synthetic method to prepare porous carbon materials with pore sizes that can be precisely controlled at the Ångstrom-level. Heating first induces thermal polymerization of selected three-dimensional aromatic molecules as the carbon sources, further heating results in extremely high carbonization yields (>86%). The porous carbon obtained from a tetrabiphenylmethane structure has a larger pore size (4.40 Å) than those from a spirobifluorene (4.07 Å) or a tetraphenylmethane precursor (4.05 Å). The porous carbon obtained from tetraphenylmethane is applied as an anode material for sodium-ion battery.

通过模板法、化学气相解吸和从碳化物中提取金属，已经获得了纳米级孔径可控的碳材料。然而，要生产埃级孔径可控的多孔碳，需要简单、通用且可重现的合成方法。在这里，我们报告了一种制备多孔碳材料的合成方法，其孔径可以精确控制在埃级别。加热首先诱导选定的三维芳族分子作为碳源的热聚合，进一步加热导致极高的碳化产率（> 86％）。从四联苯基甲烷结构获得的多孔碳具有比螺二芴 (4.07 Å) 或四苯基甲烷前体 (4.05 Å) 更大的孔径 (4.40 Å)。