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PEO-based CO2-philic mixed matrix membranes compromising N-rich ultramicroporous polyaminals for superior CO2 capture

Zhang, Xiaoxia1; Rong, Meng2,4; Qin, Peiyong1; Tan, Tianwei1,3
2022-02-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume644Pages:13
AbstractPolymer molecular sieve materials (PMS) are promising porous fillers that can be used to fabricate highperformance gas separation mixed matrix membranes (MMMs) to overcome the inherent trade-off. In this work, a nitrogen-rich ultramicroporous (0.34 nm, 0.50 nm) polyaminal network (PAN-NH2) was introduced into crosslinked PEO polymer to prepare CO2-philic MMMs with superior CO2 capture performance. Due to the synergistical interaction of the dipole-quadrupole and molecular sieving effect, PAN-NH2 demonstrates excellent molecular recognition of CO2. PAN-NH2 can be well dispersed in polymer matrix to achieve good polymer-filler interface compatibility. The incorporation of PAN-NH2 significantly improves the CO2 permeability and selectivity of membranes by increasing the CO2 solubility and providing a selective CO2 transport highway. For instance, the CO2 permeability of mixed gas (15% CO2/85% N-2, 50% CO2/50% CH4) permeation tests for 2.0 wt % PAN-NH2/PEO was increased from 340 Barrer (crosslinked PEO) to 1160 Barrer along with CO2/N-2 selectivity of 73.0 and CO2/CH4 selectivity of 19.7, surpassing the Upper bound (2019) and Upper bound (2008), respectively. The long-time stability of PAN-NH2/PEO MMMs is good, which endow them with great potential in practical CO2 capture. In addition, this work demonstrates the potential of functional ultramicroporous PMS in the preparation of high-performance MMMs for other gas separation processes.
Keyword

CO2-Philic mixed matrix membrane

PEO membrane Polyaminal Polymer molecular sieve CO2 capture
DOI10.1016/j.memsci.2021.120111
Language英语
WOS KeywordCOVALENT ORGANIC FRAMEWORK ; POLY(ETHYLENE OXIDE) ; PERMEATION PROPERTIES ; CO2/N-2 SEPARATIONS ; GAS-PERMEATION ; CARBON-DIOXIDE ; POLYMERS ; PERFORMANCE ; DESIGN ; PERMEABILITY
Funding ProjectNational Key Research and Development Program of China[2019YFB1503904] ; National Natural Science Foundation of China[21861132017] ; National Natural Science Foundation of China[22108281] ; China Postdoctoral Science Foundation[2021M703239]
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation
WOS IDWOS:000788533500005
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/52999
Collection中国科学院过程工程研究所
Corresponding AuthorRong, Meng; Tan, Tianwei
Affiliation1.Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing Key Lab Bioproc, 10029, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing Key Lab Bioproc, North Third Rd 15 Chaoyang Dist, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, 1 North 2nd St,Zhongguancun,Haidian Dist, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xiaoxia,Rong, Meng,Qin, Peiyong,et al.

PEO-based CO2-philic mixed matrix membranes compromising N-rich ultramicroporous polyaminals for superior CO2 capture

[J]. JOURNAL OF MEMBRANE SCIENCE,2022,644:13.
APA Zhang, Xiaoxia,Rong, Meng,Qin, Peiyong,&Tan, Tianwei.(2022).

PEO-based CO2-philic mixed matrix membranes compromising N-rich ultramicroporous polyaminals for superior CO2 capture

.JOURNAL OF MEMBRANE SCIENCE,644,13.
MLA Zhang, Xiaoxia,et al."

PEO-based CO2-philic mixed matrix membranes compromising N-rich ultramicroporous polyaminals for superior CO2 capture

".JOURNAL OF MEMBRANE SCIENCE 644(2022):13.
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