Lu-Lu Ma, Jiaqi Liu, Kang Zhou, Zixuan Cao, Jiafeng Miao, Guo-Ping Yang, Yao-Yu Wang, Jing Li, Hao Wang
{"title":"以 8 个连接的 Y3 节点为基础构建的 MOF 可同时实现反向吸附分离：乙烷吸附乙烯，丙烷吸附丙烯","authors":"Lu-Lu Ma, Jiaqi Liu, Kang Zhou, Zixuan Cao, Jiafeng Miao, Guo-Ping Yang, Yao-Yu Wang, Jing Li, Hao Wang","doi":"10.1007/s11426-024-2185-8","DOIUrl":null,"url":null,"abstract":"<div><p>Selective adsorption of paraffins over olefins (mostly C2 and C3) by porous solids could offer tremendous advantages for the purification of olefins, which is, however, challenging as it has stringent requirements on the pore dimensions and pore surface chemistry of the adsorbent. We report here a metal-organic framework (MOF) with novel topology, Y<sub>3</sub>(<i>μ</i><sub>3</sub>-OH)(TCMPB)<sub>2</sub> (denoted as HIAM-316, TCMPB<sup>4−</sup> = 1,2,4,5-tetra(4-carboxy-3-methylphenyl)benzene), which shows reversed separation of C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> and C<sub>3</sub>H<sub>8</sub>/C<sub>3</sub>H<sub>6</sub> simultaneously. The ideal adsorbed solution theory (IAST) selectivities for equimolar binary mixtures of C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> and C<sub>3</sub>H<sub>8</sub>/C<sub>3</sub>H<sub>6</sub> were calculated to be 1.67 and 1.23 at 1 bar and 298 K for HIAM-316. Its capability of removing paraffines from paraffin/olefin mixtures is validated by breakthrough measurements. Molecular simulations reveal that the preferential adsorption of paraffins over olefins by HIAM-316 may be attributed to the abundant carboxylate oxygen atoms along its channel.\n</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":772,"journal":{"name":"Science China Chemistry","volume":"67 11","pages":"3657 - 3661"},"PeriodicalIF":10.4000,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A MOF built on 8-connected Y3 nodes demonstrates simultaneous reverse adsorptive separation: ethane over ethylene and propane over propylene\",\"authors\":\"Lu-Lu Ma, Jiaqi Liu, Kang Zhou, Zixuan Cao, Jiafeng Miao, Guo-Ping Yang, Yao-Yu Wang, Jing Li, Hao Wang\",\"doi\":\"10.1007/s11426-024-2185-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Selective adsorption of paraffins over olefins (mostly C2 and C3) by porous solids could offer tremendous advantages for the purification of olefins, which is, however, challenging as it has stringent requirements on the pore dimensions and pore surface chemistry of the adsorbent. We report here a metal-organic framework (MOF) with novel topology, Y<sub>3</sub>(<i>μ</i><sub>3</sub>-OH)(TCMPB)<sub>2</sub> (denoted as HIAM-316, TCMPB<sup>4−</sup> = 1,2,4,5-tetra(4-carboxy-3-methylphenyl)benzene), which shows reversed separation of C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> and C<sub>3</sub>H<sub>8</sub>/C<sub>3</sub>H<sub>6</sub> simultaneously. The ideal adsorbed solution theory (IAST) selectivities for equimolar binary mixtures of C<sub>2</sub>H<sub>6</sub>/C<sub>2</sub>H<sub>4</sub> and C<sub>3</sub>H<sub>8</sub>/C<sub>3</sub>H<sub>6</sub> were calculated to be 1.67 and 1.23 at 1 bar and 298 K for HIAM-316. Its capability of removing paraffines from paraffin/olefin mixtures is validated by breakthrough measurements. Molecular simulations reveal that the preferential adsorption of paraffins over olefins by HIAM-316 may be attributed to the abundant carboxylate oxygen atoms along its channel.\\n</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":772,\"journal\":{\"name\":\"Science China Chemistry\",\"volume\":\"67 11\",\"pages\":\"3657 - 3661\"},\"PeriodicalIF\":10.4000,\"publicationDate\":\"2024-09-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science China Chemistry\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11426-024-2185-8\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science China Chemistry","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1007/s11426-024-2185-8","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
A MOF built on 8-connected Y3 nodes demonstrates simultaneous reverse adsorptive separation: ethane over ethylene and propane over propylene
Selective adsorption of paraffins over olefins (mostly C2 and C3) by porous solids could offer tremendous advantages for the purification of olefins, which is, however, challenging as it has stringent requirements on the pore dimensions and pore surface chemistry of the adsorbent. We report here a metal-organic framework (MOF) with novel topology, Y3(μ3-OH)(TCMPB)2 (denoted as HIAM-316, TCMPB4− = 1,2,4,5-tetra(4-carboxy-3-methylphenyl)benzene), which shows reversed separation of C2H6/C2H4 and C3H8/C3H6 simultaneously. The ideal adsorbed solution theory (IAST) selectivities for equimolar binary mixtures of C2H6/C2H4 and C3H8/C3H6 were calculated to be 1.67 and 1.23 at 1 bar and 298 K for HIAM-316. Its capability of removing paraffines from paraffin/olefin mixtures is validated by breakthrough measurements. Molecular simulations reveal that the preferential adsorption of paraffins over olefins by HIAM-316 may be attributed to the abundant carboxylate oxygen atoms along its channel.
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Science China Chemistry, co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China and published by Science China Press, publishes high-quality original research in both basic and applied chemistry. Indexed by Science Citation Index, it is a premier academic journal in the field.
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