Contact
    Start Publications Influence of the Surface Chemistry of Metal-Organic Polyhedra ...
    ←  Publication Finder
    KSV NIMA

    Influence of the Surface Chemistry of Metal-Organic Polyhedra in Their Assembly into Ultrathin Films for Gas Separation

    Year: 2022

    Journal: ACS Appl. Mater. Interfaces, Volume 14, JUN 15, page 27495–27506

    Authors: Tejedor, Ines; Andres, Miguel A.; Carne-Sanchez, Arnau; Arjona, Monica; Perez-Miana, Marta; Sanchez-Lainez, Javier; Coronas, Joaquin; Fontaine, Philippe; Goldmann, Michel; Roubeau, Olivier; Maspoch, Daniel; Gascon, Ignacio

    Organizations: MCIN/AEI; ERDF A way of making Europe [PID2019-105881RB-I00]; Spanish MINECO [RTI2018-095622-B-I00]; Catalan AGAUR [2017 SGR 238]; CERCA Programme/Generalitat de Catalunya; la Caixa Foundation [LCF/BQ/PR20/11770011, 100010434]; Severo Ochoa programme from the Spanish MINECO [SEV-2017-0706]; Government of Aragon; European Union [654000]; synchrotron SOLEIL [20190435, 20191874]; NSF [DMR-0520547]

    Keywords: metal-organic polyhedra (MOP); ultrathin films; surface functionalization; CO( 2)separation; MOP assembly

    : The formation of ultrathin films of Rh-based porous metal- organic polyhedra (Rh-MOPs) by the Langmuir-Blodgett method has been explored. Homogeneous and dense monolayer films were formed at the air- water interface either using two different coordinatively alkyl-functionalized Rh-MOPs (HRhMOP(diz)12 and HRhMOP(oiz)12) or by in situ incorporation of aliphatic chains to the axial sites of dirhodium paddlewheels of another Rh-MOP (OHRhMOP) at the air-liquid interface. All these RhMOP monolayers were successively deposited onto different substrates in order to obtain multilayer films with controllable thicknesses. Aliphatic chains were partially removed from HRhMOP(diz)12 films post-synthetically by a simple acid treatment, resulting in a relevant modification of the film hydrophobicity. Moreover, the CO2/N2 separation performance of Rh-MOPsupported membranes was also evaluated, proving that they can be used as selective layers for efficient CO2 separation.
    View publication