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Title: Enhanced Polymer Crystallinity in Mixed-Matrix Membranes Induced by Metal–Organic Framework Nanosheets for Efficient CO2 Capture

Journal Article · · ACS Applied Materials and Interfaces
 [1];  [2];  [3];  [1];  [4];  [2]; ORCiD logo [5];  [6]; ORCiD logo [1]
  1. National Univ. of Singapore (Singapore). Dept. of Chemical and Biomolecular Engineering
  2. Univ. de Montpellier, Montpellier (France). Inst. Charles Gerhardt Montpellier
  3. CSIRO Manufacturing, Clayton South, VIC (United States)
  4. Northern Illinois Univ., DeKalb, IL (United States). Dept. of Chemistry and Biochemistry
  5. CSIRO Manufacturing, Clayton South, VIC (United States); Monash Univ., Melbourne, VIC (Australia). Dept. of Chemical Engineering
  6. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Northern Illinois Univ., DeKalb, IL (United States). Dept. of Chemistry and Biochemistry

The design and fabrication of novel mixed-matrix membranes (MMMs) with simultaneously enhanced gas permeability and selectivity are highly sought for the industrial deployment of membrane technology for large-scale CO2 capture and storage. Conventional isotropic bulky particle fillers often exhibit limited interfacial compatibility that eventually leads to significant selectivity loss in MMMs. Here, we report the incorporation of chemically stable metal organic framework (MOF) nanosheets into a highly permeable polymer matrix to prepare defect-free MMMs. MOF nanosheets are homogeneously dispersed within the polymer matrix, owing to their high aspect ratios that improve the polymer filler integration. The strong hydrogen bonding and pi-pi interactions between the two components not only enhance the interfacial compatibility but also favor the efficient polymer chain packing along the surface of MOF nanosheets, leading to enhanced polymer crystallinity as well as size-sieving capability of the membranes. The as-prepared MMMs demonstrate high CO2-selective separation performance, good antipressure, and antiaging abilities, thus offering new opportunities in developing advanced membranes for industrial gas separation applications.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
Australian Research Council (ARC); National University of Singapore; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1542616
Journal Information:
ACS Applied Materials and Interfaces, Vol. 10, Issue 49; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 42 works
Citation information provided by
Web of Science

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Cited By (5)

Underlying mechanism of CO 2 adsorption onto conjugated azacyclo-copolymers: N-doped adsorbents capture CO 2 chiefly through acid–base interaction? journal January 2019
Highly efficient CO 2 capture by mixed matrix membranes containing three-dimensional covalent organic framework fillers journal January 2019
Amino-silane-grafted NH 2 -MIL-53(Al)/polyethersulfone mixed matrix membranes for CO 2 /CH 4 separation journal January 2019
Computationally Assisted Assessment of the Metal‐Organic Framework/Polymer Compatibility in Composites Integrating a Rigid Polymer journal August 2019
Engineering of the Filler/Polymer Interface in Metal–Organic Framework‐Based Mixed‐Matrix Membranes to Enhance Gas Separation journal July 2019