Adsorptive separation of acetylene/carbon dioxide mixtures by porous materials is an important and challenging task due to their similar sizes and physical properties. Here, remarkable acetylene/carbon dioxide separation featuring a high dynamic breakthrough capacity for acetylene (4.3 mmol·g⁻¹) as well as an ultralow acetylene regeneration energy (29.5 kJ·mol⁻¹) was achieved with the novel TiF₆²⁻-pillared material ZU-100 (TIFSIX-bpy-Ni). Construction of a pore structure with abundant TiF₆²⁻ anion sites and pores with appropriate sizes enabled formation of acetylene clusters through hydrogen bonds and intermolecular interactions, which afforded a high acetylene capacity (8.3 mmol·g⁻¹) and high acetylene/carbon dioxide uptake ratio (1.9) at 298 K and 1 bar. Moreover, the NbO₅²⁻ anion-pillared material ZU-61 investigated for separation of acetylene/carbon dioxide. In addition, breakthrough experiments were also conducted to further confirm the excellent dynamic acetylene/carbon dioxide separation performance of ZU-100.

多孔材料对乙炔/二氧化碳混合物的吸附分离是一项重要且具有挑战性的任务，因为它们具有相似的尺寸和物理性质。在这里，使用新型TiF ₆ ^2- -实现了具有高乙炔动态突破能力（4.3 mmol·g ^-1）以及超低乙炔再生能量（29.5 kJ·mol ^-1 ）的显着乙炔/二氧化碳分离。支柱材料 ZU-100 (TIFSIX-bpy-Ni)。构建具有丰富的TiF ₆ ^2-阴离子位点和适当尺寸的孔结构，通过氢键和分子间相互作用形成乙炔簇，从而提供高乙炔容量（8.3 mmol·g ^-1) 和高乙炔/二氧化碳吸收比 (1.9) 在 298 K 和 1 bar。此外，研究了 NbO ₅ ^2-阴离子柱材料 ZU-61 用于乙炔/二氧化碳的分离。此外，还进行了突破性实验，进一步证实了ZU-100优异的动态乙炔/二氧化碳分离性能。