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

Tejedor, Inés (Universidad de Zaragoza) ; Andrés, Miguel A. ; Carné-Sánchez, Arnau ; Arjona, Mónica ; Pérez-Miana, Marta (Universidad de Zaragoza) ; Sánchez-Laínez, Javier ; Coronas, Joaquín (Universidad de Zaragoza) ; Fontaine, Philippe ; Goldmann, Michel ; Roubeau, Olivier ; Maspoch, Daniel ; Gascón, Ignacio (Universidad de Zaragoza)

Resumen: 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 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.

Idioma: Inglés

DOI: 10.1021/acsami.2c06123

Año: 2022

Publicado en: ACS applied materials & interfaces 14 (2022), 27495-27506
ISSN: 1944-8244

Factor impacto JCR: 9.5 (2022)

Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 27 / 107 = 0.252 (2022) - Q2 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 55 / 343 = 0.16 (2022) - Q1 - T1

Factor impacto CITESCORE: 15.7 - Materials Science (Q1)

Factor impacto SCIMAGO: 2.178 - Materials Science (miscellaneous) (Q1) - Nanoscience and Nanotechnology (Q1) - Medicine (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/EC/H2020/654000/EU/World class Science and Innovation with Neutrons in Europe 2020/SINE2020
Financiación: info:eu-repo/grantAgreement/ES/MICINN-AEI-FEDER/PID2019-105881RB-I00
Financiación: info:eu-repo/grantAgreement/ES/MCIN/AEI/10.13039/501100011033
Financiación: info:eu-repo/grantAgreement/ES/MINECO/RTI2018-095622-B-100
Financiación: info:eu-repo/grantAgreement/ES/MINECO/SEV-2017-0706

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Química Física (Dpto. Química Física)