A flexible-robust metal-organic framework for efficient C2H2/C2H4 separation
A flexible-robust metal-organic framework for efficient C2H2/C2H4 separation
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DOI：
10.1016/j.matlet.2023.135325
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发表时间：
2023-09
影响因子：
3
通讯作者：
P. Zhang;Biao Yu;Ke Jiang;Lingdang Zhang
中科院分区：
文献类型：
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作者：
P. Zhang;Biao Yu;Ke Jiang;Lingdang Zhang
从原料乙烯（C2H4）中去除痕量乙炔（C2H2）对生产聚合物级化学品至关重要。我们在此报道了一种高氯酸盐配位金属有机骨架（ZJU-194），它具有灵活稳健的网络，可以有效地分离C2H2/ c2h4。不同的主客体亲合力导致了C2H2的两步开门吸附，而C2H4的两步关门吸附。因此，它在环境条件下具有非常高的吸附选择性（28.9），使ZJU-194成为分离C2H2/ c2h4性能最好的多孔材料之一。
The removal of trace acetylene (C2H2) from raw ethylene (C2H4) stream is critical for production of polymer-grade chemicals. We herein report a perchlorate-coordinated metal–organic framework (ZJU-194) featuring flexible-robust network for efficient C2H2/C2H4separation. The distinct-different host–guest affinity accounts for two-step gate-opening adsorption of C2H2, but gate-close of C2H4. It thus affords very high adsorptive selectivity (28.9) at ambient conditions, endowing ZJU-194 among one of the top-performing porous materials for C2H2/C2H4separation.