Tuning Pore Size in Square-Lattice Coordination Networks for Size-Selective Sieving of CO2

Kai Jie Chen; David G. Madden; Tony Pham; Katherine A. Forrest; Amrit Kumar; Qing Yuan Yang; Wei Xue; Brian Space; John J. Perry; Jie Peng Zhang; Xiao Ming Chen; Michael J. Zaworotko

doi:10.1002/anie.201603934

Tuning Pore Size in Square-Lattice Coordination Networks for Size-Selective Sieving of CO₂

Kai Jie Chen, David G. Madden, Tony Pham, Katherine A. Forrest, Amrit Kumar, Qing Yuan Yang, Wei Xue, Brian Space, John J. Perry, Jie Peng Zhang, Xiao Ming Chen, Michael J. Zaworotko

Department of Chemical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Porous materials capable of selectively capturing CO₂from flue-gases or natural gas are of interest in terms of rising atmospheric CO₂levels and methane purification. Size-exclusive sieving of CO₂over CH₄and N₂has rarely been achieved. Herein we show that a crystal engineering approach to tuning of pore-size in a coordination network, [Cu(quinoline-5-carboxyate)₂]_n(Qc-5-Cu) ena+bles ultra-high selectivity for CO₂over N₂(S_CN≈40 000) and CH₄(S_CM≈3300). Qc-5-Cu-sql-β, a narrow pore polymorph of the square lattice (sql) coordination network Qc-5-Cu-sql-α, adsorbs CO₂while excluding both CH₄and N₂. Experimental measurements and molecular modeling validate and explain the performance. Qc-5-Cu-sql-β is stable to moisture and its separation performance is unaffected by humidity.

Original language	English
Pages (from-to)	10268-10272
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	35
DOIs	https://doi.org/10.1002/anie.201603934
Publication status	Published - 22 Aug 2016

Keywords

COseparation
gas sorption
molecular sieving effect
stability
supramolecular isomerism

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10.1002/anie.201603934

Cite this

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title = "Tuning Pore Size in Square-Lattice Coordination Networks for Size-Selective Sieving of CO2",

abstract = "Porous materials capable of selectively capturing CO2from flue-gases or natural gas are of interest in terms of rising atmospheric CO2levels and methane purification. Size-exclusive sieving of CO2over CH4and N2has rarely been achieved. Herein we show that a crystal engineering approach to tuning of pore-size in a coordination network, [Cu(quinoline-5-carboxyate)2]n(Qc-5-Cu) ena+bles ultra-high selectivity for CO2over N2(SCN≈40 000) and CH4(SCM≈3300). Qc-5-Cu-sql-β, a narrow pore polymorph of the square lattice (sql) coordination network Qc-5-Cu-sql-α, adsorbs CO2while excluding both CH4and N2. Experimental measurements and molecular modeling validate and explain the performance. Qc-5-Cu-sql-β is stable to moisture and its separation performance is unaffected by humidity.",

keywords = "COseparation, gas sorption, molecular sieving effect, stability, supramolecular isomerism",

author = "Chen, {Kai Jie} and Madden, {David G.} and Tony Pham and Forrest, {Katherine A.} and Amrit Kumar and Yang, {Qing Yuan} and Wei Xue and Brian Space and Perry, {John J.} and Zhang, {Jie Peng} and Chen, {Xiao Ming} and Zaworotko, {Michael J.}",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2016",

month = aug,

day = "22",

doi = "10.1002/anie.201603934",

language = "English",

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T1 - Tuning Pore Size in Square-Lattice Coordination Networks for Size-Selective Sieving of CO2

AU - Chen, Kai Jie

AU - Madden, David G.

AU - Pham, Tony

AU - Forrest, Katherine A.

AU - Kumar, Amrit

AU - Yang, Qing Yuan

AU - Xue, Wei

AU - Space, Brian

AU - Perry, John J.

AU - Zhang, Jie Peng

AU - Chen, Xiao Ming

AU - Zaworotko, Michael J.

PY - 2016/8/22

Y1 - 2016/8/22

N2 - Porous materials capable of selectively capturing CO2from flue-gases or natural gas are of interest in terms of rising atmospheric CO2levels and methane purification. Size-exclusive sieving of CO2over CH4and N2has rarely been achieved. Herein we show that a crystal engineering approach to tuning of pore-size in a coordination network, [Cu(quinoline-5-carboxyate)2]n(Qc-5-Cu) ena+bles ultra-high selectivity for CO2over N2(SCN≈40 000) and CH4(SCM≈3300). Qc-5-Cu-sql-β, a narrow pore polymorph of the square lattice (sql) coordination network Qc-5-Cu-sql-α, adsorbs CO2while excluding both CH4and N2. Experimental measurements and molecular modeling validate and explain the performance. Qc-5-Cu-sql-β is stable to moisture and its separation performance is unaffected by humidity.

AB - Porous materials capable of selectively capturing CO2from flue-gases or natural gas are of interest in terms of rising atmospheric CO2levels and methane purification. Size-exclusive sieving of CO2over CH4and N2has rarely been achieved. Herein we show that a crystal engineering approach to tuning of pore-size in a coordination network, [Cu(quinoline-5-carboxyate)2]n(Qc-5-Cu) ena+bles ultra-high selectivity for CO2over N2(SCN≈40 000) and CH4(SCM≈3300). Qc-5-Cu-sql-β, a narrow pore polymorph of the square lattice (sql) coordination network Qc-5-Cu-sql-α, adsorbs CO2while excluding both CH4and N2. Experimental measurements and molecular modeling validate and explain the performance. Qc-5-Cu-sql-β is stable to moisture and its separation performance is unaffected by humidity.

KW - COseparation

KW - gas sorption

KW - molecular sieving effect

KW - stability

KW - supramolecular isomerism

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