Ultrathin Films of Porous Metal–Organic Polyhedra for Gas Separation

Ultrathin films of a robust RhII‐based porous metal–organic polyhedra (MOP) have been obtained. Homogeneous and compact monolayer films (ca. 2.5 nm thick) were first formed at the air–water interface, deposited onto different substrates and characterized using spectroscopic methods, scanning transmi...

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Veröffentlicht in:Chemistry : a European journal 2020-01, Vol.26 (1), p.143-147
Hauptverfasser: Andrés, Miguel A., Carné‐Sánchez, Arnau, Sánchez‐Laínez, Javier, Roubeau, Olivier, Coronas, Joaquín, Maspoch, Daniel, Gascón, Ignacio
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container_issue 1
container_start_page 143
container_title Chemistry : a European journal
container_volume 26
creator Andrés, Miguel A.
Carné‐Sánchez, Arnau
Sánchez‐Laínez, Javier
Roubeau, Olivier
Coronas, Joaquín
Maspoch, Daniel
Gascón, Ignacio
description Ultrathin films of a robust RhII‐based porous metal–organic polyhedra (MOP) have been obtained. Homogeneous and compact monolayer films (ca. 2.5 nm thick) were first formed at the air–water interface, deposited onto different substrates and characterized using spectroscopic methods, scanning transmission electron microscopy and atomic force microscopy. As a proof of concept, the gas separation performance of MOP‐supported membranes has also been evaluated. Selective MOP ultrathin films (thickness ca. 60 nm) exhibit remarkable CO2 permeance and CO2/N2 selectivity, demonstrating the great combined potential of MOP and Langmuir‐based techniques in separation technologies. Fabrication of compact and dense porous metal–organic polyhedra (MOP) ultrathin films offers several advantages for the development of MOP‐based applications in gas separation. MOP‐supported membranes obtained by successive RhII‐based MOP monolayer deposition can be applied for efficient CO2 separation (see figure).
doi_str_mv 10.1002/chem.201904141
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subjects Atomic force microscopy
Carbon dioxide
Chemistry
CO2 separation
Electronics
Gas separation
Langmuir–Blodgett technique
Membranes
metal–organic polyhedra
Microscopy
Polyhedra
scanning electron microscopy
Scanning transmission electron microscopy
Selectivity
Substrates
Thickness
Thin films
Transmission electron microscopy
title Ultrathin Films of Porous Metal–Organic Polyhedra for Gas Separation
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