Efficient ethylene purification by a robust ethane-trapping porous organic cage

The removal of ethane (C(2)H(6)) from its analogous ethylene (C(2)H(4)) is of paramount importance in the petrochemical industry, but highly challenging due to their similar physicochemical properties. The use of emerging porous organic cage (POC) materials for C(2)H(6)/C(2)H(4) separation is still...

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Autores principales: Su, Kongzhao, Wang, Wenjing, Du, Shunfu, Ji, Chunqing, Yuan, Daqiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8211788/
https://www.ncbi.nlm.nih.gov/pubmed/34140501
http://dx.doi.org/10.1038/s41467-021-24042-7
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author Su, Kongzhao
Wang, Wenjing
Du, Shunfu
Ji, Chunqing
Yuan, Daqiang
author_facet Su, Kongzhao
Wang, Wenjing
Du, Shunfu
Ji, Chunqing
Yuan, Daqiang
author_sort Su, Kongzhao
collection PubMed
description The removal of ethane (C(2)H(6)) from its analogous ethylene (C(2)H(4)) is of paramount importance in the petrochemical industry, but highly challenging due to their similar physicochemical properties. The use of emerging porous organic cage (POC) materials for C(2)H(6)/C(2)H(4) separation is still in its infancy. Here, we report the benchmark example of a truncated octahedral calix[4]resorcinarene-based POC adsorbent (CPOC-301), preferring to adsorb C(2)H(6) than C(2)H(4), and thus can be used as a robust absorbent to directly separate high-purity C(2)H(4) from the C(2)H(6)/C(2)H(4) mixture. Molecular modelling studies suggest the exceptional C(2)H(6) selectivity is due to the suitable resorcin[4]arene cavities in CPOC-301, which form more multiple C–H···π hydrogen bonds with C(2)H(6) than with C(2)H(4) guests. This work provides a fresh avenue to utilize POC materials for highly selective separation of industrially important hydrocarbons.
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spelling pubmed-82117882021-07-01 Efficient ethylene purification by a robust ethane-trapping porous organic cage Su, Kongzhao Wang, Wenjing Du, Shunfu Ji, Chunqing Yuan, Daqiang Nat Commun Article The removal of ethane (C(2)H(6)) from its analogous ethylene (C(2)H(4)) is of paramount importance in the petrochemical industry, but highly challenging due to their similar physicochemical properties. The use of emerging porous organic cage (POC) materials for C(2)H(6)/C(2)H(4) separation is still in its infancy. Here, we report the benchmark example of a truncated octahedral calix[4]resorcinarene-based POC adsorbent (CPOC-301), preferring to adsorb C(2)H(6) than C(2)H(4), and thus can be used as a robust absorbent to directly separate high-purity C(2)H(4) from the C(2)H(6)/C(2)H(4) mixture. Molecular modelling studies suggest the exceptional C(2)H(6) selectivity is due to the suitable resorcin[4]arene cavities in CPOC-301, which form more multiple C–H···π hydrogen bonds with C(2)H(6) than with C(2)H(4) guests. This work provides a fresh avenue to utilize POC materials for highly selective separation of industrially important hydrocarbons. Nature Publishing Group UK 2021-06-17 /pmc/articles/PMC8211788/ /pubmed/34140501 http://dx.doi.org/10.1038/s41467-021-24042-7 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Su, Kongzhao
Wang, Wenjing
Du, Shunfu
Ji, Chunqing
Yuan, Daqiang
Efficient ethylene purification by a robust ethane-trapping porous organic cage
title Efficient ethylene purification by a robust ethane-trapping porous organic cage
title_full Efficient ethylene purification by a robust ethane-trapping porous organic cage
title_fullStr Efficient ethylene purification by a robust ethane-trapping porous organic cage
title_full_unstemmed Efficient ethylene purification by a robust ethane-trapping porous organic cage
title_short Efficient ethylene purification by a robust ethane-trapping porous organic cage
title_sort efficient ethylene purification by a robust ethane-trapping porous organic cage
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8211788/
https://www.ncbi.nlm.nih.gov/pubmed/34140501
http://dx.doi.org/10.1038/s41467-021-24042-7
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AT jichunqing efficientethylenepurificationbyarobustethanetrappingporousorganiccage
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