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Ultrathin Films of Porous Metal–Organic Polyhedra for Gas Separation |
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| Authors: | Miguel A Andrés Dr Arnau Carné-Sánchez Dr Javier Sánchez-Laínez Dr Olivier Roubeau Prof?Dr Joaquín Coronas Prof?Dr Daniel Maspoch Dr Ignacio Gascón |
| Institution: | 1. Departamento de Química Física and Instituto de Nanociencia de, Aragón (INA), Universidad de Zaragoza, 50009 Zaragoza, Spain;2. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain;3. Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC, Universidad de Zaragoza, 50009 Zaragoza, Spain |
| Abstract: | 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. |
| Keywords: | atomic force microscopy CO2 separation Langmuir–Blodgett technique metal–organic polyhedra thin films scanning electron microscopy |