title: Sprayable, Large-Area Metal-Organic Framework Films and Membranes of Varying Thickness.
abstract: Despite their huge potential for efficient molecular separation, the fabrication of membranes from metal-organic frameworks (MOFs) remains a major challenge. The powders obtained by the conventional solvothermal MOF syntheses are difficult to process, and as a result the fabrication of well-performing, large-area MOF-based membranes is still awaiting success. The deposition of MOF thin films suited for membrane applications is demonstrated by employing a step-by-step spray method. This method can be scaled up to obtain industrially relevant membrane areas and a continuous process is also possible. The performance of sprayed HKUST-1-based membranes by the separation of a binary H2/CO2mixture is also demonstrated. Furthermore, this approach enables the control of the MOF film thickness, and thus controlling the permeance and the selectivity of the membrane.
authors.affiliation: Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128, Karlsruhe, Germany.|Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.|Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces (IFG), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
authors.forename: Silvana
authors.initials: S
authors.lastname: Hurrle
authors.affiliation: Leibniz University Hanover, Institute for Physical Chemistry and Electrochemistry, Callinstraße 3A, 30167, Hannover, Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Friebe
authors.affiliation: Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces (IFG), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
authors.forename: Jonas
authors.initials: J
authors.lastname: Wohlgemuth
authors.affiliation: Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces (IFG), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
authors.forename: Christof
authors.initials: C
authors.lastname: Wöll
authors.affiliation: Leibniz University Hanover, Institute for Physical Chemistry and Electrochemistry, Callinstraße 3A, 30167, Hannover, Germany.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Caro
authors.affiliation: Karlsruhe Institute of Technology (KIT), Institute of Functional Interfaces (IFG), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
authors.forename: Lars
authors.identifier: http://orcid.org/0000-0002-1439-9695
authors.initials: L
authors.lastname: Heinke
keywords: H2/CO2 separation; HKUST-1 membrane; metal-organic frameworks; thin films