Large-Scale Screening and Machine Learning for Metal–Organic Framework Membranes to Capture CO<sub>2</sub> from Flue Gas

To combat global warming, as an energy-saving technology, membrane separation can be applied to capture CO<sub>2</sub> from flue gas. Metal–organic frameworks (MOFs) with characteristics like high porosity have great potential as membrane materials for gas mixture separation. In this wor...

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Main Authors: Yizhen Situ, Xueying Yuan, Xiangning Bai, Shuhua Li, Hong Liang, Xin Zhu, Bangfen Wang, Zhiwei Qiao
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Membranes
Subjects:
Online Access:https://www.mdpi.com/2077-0375/12/7/700
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author Yizhen Situ
Xueying Yuan
Xiangning Bai
Shuhua Li
Hong Liang
Xin Zhu
Bangfen Wang
Zhiwei Qiao
author_facet Yizhen Situ
Xueying Yuan
Xiangning Bai
Shuhua Li
Hong Liang
Xin Zhu
Bangfen Wang
Zhiwei Qiao
author_sort Yizhen Situ
collection DOAJ
description To combat global warming, as an energy-saving technology, membrane separation can be applied to capture CO<sub>2</sub> from flue gas. Metal–organic frameworks (MOFs) with characteristics like high porosity have great potential as membrane materials for gas mixture separation. In this work, through a combination of grand canonical Monte Carlo and molecular dynamics simulations, the permeability of three gases (CO<sub>2</sub>, N<sub>2</sub>, and O<sub>2</sub>) was calculated and estimated in 6013 computation–ready experimental MOF membranes (CoRE–MOFMs). Then, the relationship between structural descriptors and permeance performance, and the importance of available permeance area to permeance performance of gas molecules with smaller kinetic diameters were found by univariate analysis. Furthermore, comparing the prediction accuracy of seven classification machine learning algorithms, XGBoost was selected to analyze the order of importance of six structural descriptors to permeance performance, through which the conclusion of the univariate analysis was demonstrated one more time. Finally, seven promising CoRE-MOFMs were selected, and their structural characteristics were analyzed. This work provides explicit directions and powerful guidelines to experimenters to accelerate the research on membrane separation for the purification of flue gas.
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spelling doaj.art-6e0fc78bd12b4582b112a00c5c9903e02023-12-03T11:55:30ZengMDPI AGMembranes2077-03752022-07-0112770010.3390/membranes12070700Large-Scale Screening and Machine Learning for Metal–Organic Framework Membranes to Capture CO<sub>2</sub> from Flue GasYizhen Situ0Xueying Yuan1Xiangning Bai2Shuhua Li3Hong Liang4Xin Zhu5Bangfen Wang6Zhiwei Qiao7Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, ChinaTo combat global warming, as an energy-saving technology, membrane separation can be applied to capture CO<sub>2</sub> from flue gas. Metal–organic frameworks (MOFs) with characteristics like high porosity have great potential as membrane materials for gas mixture separation. In this work, through a combination of grand canonical Monte Carlo and molecular dynamics simulations, the permeability of three gases (CO<sub>2</sub>, N<sub>2</sub>, and O<sub>2</sub>) was calculated and estimated in 6013 computation–ready experimental MOF membranes (CoRE–MOFMs). Then, the relationship between structural descriptors and permeance performance, and the importance of available permeance area to permeance performance of gas molecules with smaller kinetic diameters were found by univariate analysis. Furthermore, comparing the prediction accuracy of seven classification machine learning algorithms, XGBoost was selected to analyze the order of importance of six structural descriptors to permeance performance, through which the conclusion of the univariate analysis was demonstrated one more time. Finally, seven promising CoRE-MOFMs were selected, and their structural characteristics were analyzed. This work provides explicit directions and powerful guidelines to experimenters to accelerate the research on membrane separation for the purification of flue gas.https://www.mdpi.com/2077-0375/12/7/700membrane separationmetal–organic frameworksmachine learning
spellingShingle Yizhen Situ
Xueying Yuan
Xiangning Bai
Shuhua Li
Hong Liang
Xin Zhu
Bangfen Wang
Zhiwei Qiao
Large-Scale Screening and Machine Learning for Metal–Organic Framework Membranes to Capture CO<sub>2</sub> from Flue Gas
Membranes
membrane separation
metal–organic frameworks
machine learning
title Large-Scale Screening and Machine Learning for Metal–Organic Framework Membranes to Capture CO<sub>2</sub> from Flue Gas
title_full Large-Scale Screening and Machine Learning for Metal–Organic Framework Membranes to Capture CO<sub>2</sub> from Flue Gas
title_fullStr Large-Scale Screening and Machine Learning for Metal–Organic Framework Membranes to Capture CO<sub>2</sub> from Flue Gas
title_full_unstemmed Large-Scale Screening and Machine Learning for Metal–Organic Framework Membranes to Capture CO<sub>2</sub> from Flue Gas
title_short Large-Scale Screening and Machine Learning for Metal–Organic Framework Membranes to Capture CO<sub>2</sub> from Flue Gas
title_sort large scale screening and machine learning for metal organic framework membranes to capture co sub 2 sub from flue gas
topic membrane separation
metal–organic frameworks
machine learning
url https://www.mdpi.com/2077-0375/12/7/700
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