doi:10.1021/acsami.2c06123engTejedor, InésAndrés, Miguel A.Carné-Sánchez, ArnauArjona, MónicaPérez-Miana, MartaSánchez-Laínez, JavierCoronas, JoaquínFontaine, PhilippeGoldmann, MichelRoubeau, OlivierMaspoch, DanielGascón, IgnacioInfluence of the Surface Chemistry of Metal-Organic Polyhedra in Their Assembly into Ultrathin Films for Gas SeparationART-2022-129972The 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 Rh-MOP 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-MOP-supported membranes was also evaluated, proving that they can be used as selective layers for efficient CO2 separation. © 2022 The Authors. Published by American Chemical Society.2022http://zaguan.unizar.es/record/11972210.1021/acsami.2c06123http://zaguan.unizar.es/record/119722oai:zaguan.unizar.es:119722info:eu-repo/grantAgreement/EC/H2020/654000/EU/World class Science and Innovation with Neutrons in Europe 2020/SINE2020This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 654000-SINE2020info:eu-repo/grantAgreement/ES/MICINN-AEI-FEDER/PID2019-105881RB-I00info:eu-repo/grantAgreement/ES/MCIN/AEI/10.13039/501100011033info:eu-repo/grantAgreement/ES/MINECO/RTI2018-095622-B-100info:eu-repo/grantAgreement/ES/MINECO/SEV-2017-0706ACS applied materials & interfaces 14 (2022), 27495-27506byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess