DataVXACS Applied Materials & InterfacesPaper
journal article·2020-11-04

Highly Efficient Permeation and Separation of Gases with Metal–Organic Frameworks Confined in Polymeric Nanochannels

Muhammad Usman, Mubarak Ali, Bassem A. Al-Maythalony, Akram S. Ghanem, Omar Waqas Saadi, Murad Ali, Mohammad A. Jafar Mazumder, Safwat Abdel-Azeim, Mohamed A. Habib, Zain H. Yamani, Wolfgang Ensinger

ACS Applied Materials & Interfaces· Volume 12· Issue 44
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Source abstract

Abstract

This work demonstrates the confinement of porous metal–organic framework (HKUST-1) on the surface and walls of track-etched nanochannel in polyethylene terephthalate (np-PET) membrane using a liquid-phase epitaxy (LPE) technique. The composite membrane (HKUST-1/np-PET) exhibits defect-free MOF growth continuity, strong attachment of MOF to the support, and a high degree of flexibility. The high flexibility and the strong confinement of the MOF in composite membrane results from (i) the flexible np-PET support, (ii) coordination attachment between HKUST-1 and the support, and (iii) the growth of HKUST-1 crystal in nanoconfined geometries. The MOF has a preferred growth orientation with a window size of 3.5 Å, resulting in a clear cut-off of CO2 from natural gas and olefins. The experimental results and DFT calculations show that the restricted diffusion of gases only takes place through the nanoporous MOF confined in the np-PET substrate. This research thereby provides a new perspective to grow other porous MOFs in artificially prepared nanochannels for the realization of continuous, flexible, and defect-free membranes for various applications.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersNanomaterialsComposites

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Membrane Separation and Gas Transport · Covalent Organic Framework Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia

Materialforschung, GSI Helmholtzzentrum für Schwerionenforschungm GmbH, Darmstadt D-64291, Germany

Fachbereich Material-u, Geowissenschaften, Fachgebiet Materialanalytik, Technische Universität Darmstadt, Darmstadt D-64287, Germany

Technology Innovation Center on Carbon Capture and Sequestration (TIC on CCS), King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia

King Abdulaziz City for Science and Technology−Technology Innovation Center on Carbon Capture and Sequestration (KACST-TIC on CCS) at KFUPM, Dhahran 31261, Saudi Arabia

Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia

Center of Integrative Petroleum Research, College of Petroleum Engineering and Geosciences, KFUPM, Dhahran 31261, Saudi Arabia

Funding

Ministry of Education - Kingdom of Saudi Arabi

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