Structural Optimization of Interpenetrated Pillared‐Layer Coordination Polymers for Ethylene/Ethane Separation |
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| Authors: | Keisuke Kishida Dr. Satoshi Horike Yoshihiro Watanabe Mina Tahara Yasutaka Inubushi Prof. Susumu Kitagawa |
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| Affiliation: | 1. Institute for Advanced and Core Technology, Showa Denko K. K. 2 Oaza Nakanosu, Oita 870‐0189 (Japan);2. Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo‐ku, Kyoto 615‐8510 (Japan), Fax: (+81)?75‐383‐2732;3. Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency, 4‐1‐8 Honcho, Kawaguchi, Saitama 332‐0012 (Japan);4. Synthesis Research Laboratory, Kurashiki Research Center, Kuraray Co. Ltd. 2045‐1, Sakazu, Kurashiki, Okayama 710‐0801 (Japan);5. Institute for Integrated Cell‐Material Sciences (WPI‐iCeMS), Kyoto University, Yoshida, Sakyo‐ku, Kyoto 606‐8501 (Japan) |
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| Abstract: | With the goal of achieving effective ethylene/ethane separation, we evaluated the gas sorption properties of four pillared‐layer‐type porous coordination polymers with double interpenetration, [Zn2(tp)2(bpy)]n ( 1 ), [Zn2(fm)2(bpe)]n ( 2 ), [Zn2(fm)2(bpa)]n ( 3 ), and [Zn2(fm)2(bpy)]n ( 4 ) (tp=terephthalate, bpy=4,4′‐bipyridyl, fm=fumarate, bpe=1,2‐di(4‐pyridyl)ethylene and bpa=1,2‐di(4‐pyridyl)ethane). It was found that 4 , which contains the narrowest pores of all of these compounds, exhibited ethylene‐selective sorption profiles. The ethylene selectivity of 4 was estimated to be 4.6 at 298 K based on breakthrough experiments using ethylene/ethane gas mixtures. In addition, 4 exhibited a good regeneration ability compared with a conventional porous material. |
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| Keywords: | adsorption guest‐responsive materials metal– organic frameworks microporous materials separation |
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