在 KOH 活化的碳化多孔芳香骨架中实现高低压下的超高气体存储。

State Key Laboratory of Inorganic Synthesis & Preparation Chemistry, Jilin University, Changchun, China.

Sci Rep. 2013;3:2420. doi: 10.1038/srep02420.

The carbonized PAF-1 derivatives formed by high-temperature KOH activation showed a unique bimodal microporous structure located at 0.6 nm and 1.2 nm and high surface area. These robust micropores were confirmed by nitrogen sorption experiment and high-resolution transmission electron microscopy (TEM). Carbon dioxide, methane and hydrogen sorption experiments indicated that these novel porous carbon materials have significant gas sorption abilities in both low-pressure and high-pressure environments. Moreover the methane storage ability of K-PAF-1-750 is among the best at 35 bars, and its low-pressure gas adsorption abilities are also comparable to the best porous materials in the world. Combined with excellent physicochemical stability, these materials are very promising for industrial applications such as carbon dioxide capture and high-density clean energy storage.

高温 KOH 活化形成的碳化 PAF-1 衍生物具有独特的双峰微孔结构，位于 0.6nm 和 1.2nm 处，具有高比表面积。氮气吸附实验和高分辨率透射电子显微镜（TEM）证实了这些坚固的微孔。二氧化碳、甲烷和氢气吸附实验表明，这些新型多孔碳材料在低压和高压环境中均具有显著的气体吸附能力。此外，在 35 巴下，K-PAF-1-750 的甲烷存储能力是最好的之一，其低压气体吸附能力也可与世界上最好的多孔材料相媲美。结合优异的物理化学稳定性，这些材料在二氧化碳捕集和高密度清洁能源存储等工业应用中具有广阔的应用前景。