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On the direct synthesis of Cu(BDC) MOF nanosheets and their performance in mixed matrix membranes

Journal Article · · Journal of Membrane Science
 [1];  [1];  [2];  [1];  [3];  [4];  [1];  [5];  [1]
  1. Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Chemical Engineering and Materials Science
  2. Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Chemical Engineering
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS), X-Ray Science Division
  5. Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering; Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
High aspect-ratio nanosheets of metal-organic frameworks (MOFs) hold promise for use as selective flakes in gas separation membranes. However, simple and scalable methods for the synthesis of MOF nanosheets have thus far remained elusive. Here, we describe the direct synthesis of Cu(BDC) (BDC2-= 1,4-benzenedicarboxylate) nanosheets with an average lateral size of 2.5 mu m and a thickness of 25 nm from a well-mixed solution. Characterization of the nanosheets by powder and thin film X-ray diffraction, electron microscopy, and electron diffraction reveals pronounced structural disorder that may affect their pore structure. Incorporation of the Cu (BDC) nanosheets into a Matrimid polymer matrix results in mixed matrix membranes (MMMs) that exhibit a 70% increase in the CO2/CH4 selectivity compared with that of Matrimid. Finally, analysis of new and previously reported permeation data for Cu(BDC) MMMs using a mathematical model for selective flake composites indicates that further performance improvements could be achieved with the selection of different polymers for use in the continuous phase.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Gas Separations Relevant to Clean Energy Technologies (CGS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division; University of Minnesota
Grant/Contract Number:
AC02-06CH11357; SC0001015
OSTI ID:
1426221
Alternate ID(s):
OSTI ID: 1548918
Journal Information:
Journal of Membrane Science, Journal Name: Journal of Membrane Science Journal Issue: C Vol. 549; ISSN 0376-7388
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (17)

Evaluation of the Properties, Gas Permeability, and Selectivity of Mixed Matrix Membrane Based on Polysulfone Polymer Matrix Incorporated with KIT-6 Silica journal October 2019
Advanced Porous Materials in Mixed Matrix Membranes journal July 2018
2D and 3D Metal-Organic Framework at the Oil/Water Interface: A Case Study of Copper Benzenedicarboxylate journal November 2018
2D Metal‐Organic Framework Materials for Membrane‐Based Separation journal November 2019
Engineering of the Filler/Polymer Interface in Metal–Organic Framework‐Based Mixed‐Matrix Membranes to Enhance Gas Separation journal July 2019
Two-dimensional metal–organic framework nanosheets: synthesis and applications journal January 2018
Crystallization of high aspect ratio HKUST-1 thin films in nanoconfined channels for selective small molecule uptake journal January 2019
MOF-derived CuCoNi trimetallic hybrids as efficient oxygen evolution reaction electrocatalysts journal January 2020
Ultrathin 2D metal–organic framework nanosheets prepared via sonication exfoliation of membranes from interfacial growth and exhibition of enhanced catalytic activity by their gold nanocomposites journal January 2019
Solvent-free vacuum growth of oriented HKUST-1 thin films journal January 2019
2D molecular crystal lattices: advances in their synthesis, characterization, and application journal January 2019
Surfactant assisted synthesis of hierarchical porous metal-organic frameworks nanosheets journal August 2019
2D-enabled membranes: materials and beyond journal May 2019
Zeolitic Imidazolate Framework Membranes for Light Olefin/Paraffin Separation journal December 2018
Modulating and Orienting an Anisotropic Zn-Based Metal Organic Framework for Selective CH4/CO2 Gas Separation journal December 2018
Performance of Mixed Matrix Membranes Containing Porous Two-Dimensional (2D) and Three-Dimensional (3D) Fillers for CO2 Separation: A Review journal July 2018
Poly(1-trimethylsilyl-1-propyne)-Based Hybrid Membranes: Effects of Various Nanofillers and Feed Gas Humidity on CO2 Permeation journal September 2018

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