Porosimetry for Thin Films of Metal-Organic Frameworks A Comparison of Positron Annihilation Lifetime Spectroscopy and Adsorption-Based Methods

Porosimetry for Thin Films of Metal-Organic Frameworks : A Comparison of Positron Annihilation Lifetime Spectroscopy and Adsorption-Based Methods

© 2021 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 33(2021), 17 vom: 15. Apr., Seite e2006993
1. Verfasser: Stassin, Timothée (VerfasserIn)
Weitere Verfasser: Verbeke, Rhea, Cruz, Alexander John, Rodríguez-Hermida, Sabina, Stassen, Ivo, Marreiros, João, Krishtab, Mikhail, Dickmann, Marcel, Egger, Werner, Vankelecom, Ivo F J, Furukawa, Shuhei, De Vos, Dirk, Grosso, David, Thommes, Matthias, Ameloot, Rob
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Review adsorption metal-organic frameworks porosimetry porous materials positron annihilation lifetime spectroscopy thin films
Beschreibung
Zusammenfassung:© 2021 Wiley-VCH GmbH.
Thin films of crystalline and porous metal-organic frameworks (MOFs) have great potential in membranes, sensors, and microelectronic chips. While the morphology and crystallinity of MOF films can be evaluated using widely available techniques, characterizing their pore size, pore volume, and specific surface area is challenging due to the low amount of material and substrate effects. Positron annihilation lifetime spectroscopy (PALS) is introduced as a powerful method to obtain pore size information and depth profiling in MOF films. The complementarity of this approach to established physisorption-based methods such as quartz crystal microbalance (QCM) gravimetry, ellipsometric porosimetry (EP), and Kr physisorption (KrP) is illustrated. This comprehensive discussion on MOF thin film porosimetry is supported by experimental data for thin films of ZIF-8
Beschreibung:Date Revised 27.04.2021
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202006993