Herein, octaphenylcyclotetrasiloxane was used as the substrate, cyanuric chloride was applied as the cross-linker, and a series of novel hyper-cross-linked polymers with organic-inorganic hybrid framework and spherical morphology was fabricated by a typical Friedel-Crafts reaction. These polymers were used as the excellent precursors for the synthesis of N-doped porous carbons. After KOH-activation carbonization, the spherical morphology of the polymers was retained while the porosity was significantly enhanced. Interestingly, the Brunauer-Emmett-Teller surface area (S_BET), total pore volume (V_total), micropore volume (V_micro), and V_micro/V_total of the carbons could be finely tuned in the range of 237–2058 m²/g, 0.12–1.08 cm³/g, 0.10–0.93 cm³/g, and 79.4–88.5%, respectively, and the microporosity was distinctly improved as the carbonization temperature increased. These carbons owned decent CO₂ uptake (80–263 mg/g), HCP2b-K700 had the highest CO₂ uptake of 263 mg/g at 273 K and 1.0 bar and it arrived at 590 mg/g at 298 K and 10 bar. These carbons had moderate isosteric heat of adsorption (20.3–41.8 kJ/mol) and acceptable CO₂/N₂ selectivity (IAST: 10.8–43.7). The porous carbons developed therein had high surface area and outstanding microporosity, endowed them with promising application prospect in CO₂ capture and sequestration.

在此，以八苯基环四硅氧烷为底物，以氰尿酰氯为交联剂，通过典型的Friedel-Crafts反应制备了一系列具有有机-无机杂化骨架和球形形态的新型超交联聚合物。这些聚合物被用作合成N掺杂多孔碳的优秀前体。KOH活化碳化后，聚合物的球形形态得以保留，同时孔隙率显着提高。有趣的是，Brunauer-Emmett-Teller表面积（S _BET），总孔体积（V _total），微孔体积（V _micro）和V _micro / V _total的碳原子可以在237-2058微米的范围内进行微调² /克，0.12-1.08厘米³ /克，0.10-0.93厘米³ /克，和79.4-88.5％，分别和微孔正如明显改善碳化温度升高。这些碳具有适当的CO ₂吸收量（80-263 mg / g），HCP2b-K700在273 K和1.0 bar下的最高CO ₂吸收量为263 mg / g，在298 K和10 bar下达到590 mg / g。 。这些碳具有中等的等规吸附热（20.3–41.8 kJ / mol）和可接受的CO ₂ / N ₂选择性（IAST：10.8–43.7）。其中形成的多孔碳具有高的表面积和优异的微孔性，使其在CO ₂捕集和封存方面具有广阔的应用前景。