High-temperature sintered 3D-printed alumina as mechanically robust supports for MOF catalysis

Author(s)
Flora Schöfbeck, Tanja Eder, Wenyi Zeng, Dominik Brouczek, Martin Schwentenwein, Youven Benseghir, Michael R Reithofer, Jia Min Chin
Abstract

We demonstrate the functionalization of high-temperature sintered, 3D-printed α-alumina ceramics with ZIF-8 and MOF-808 to create robust MOF-ceramic composites. Dense α-alumina sintered at 1450-1650 °C can be directly functionalized despite its low surface hydroxyl density. The composites unite MOF activity with the mechanical strength and design freedom of additive-manufactured ceramics. Using MOF-808, rapid and complete degradation of dimethyl-4-nitrophenyl phosphate (DMNP) was achieved, with cycling tests confirming strong MOF adhesion. Grid-like printed geometries provided high surface area and handling advantages, eliminating centrifugation and filtration required for powders. This work establishes a scalable platform for integrating MOFs with mechanically resilient, architected ceramics for further applications, such as catalysis, separations, and water treatment.

Organisation(s)
Department of Functional Materials and Catalysis, Department of Inorganic Chemistry
External organisation(s)
Vienna Doctoral School in Chemistry (DoSChem), Lithoz GmbH, Wolfgang Pauli Institute (WPI) Vienna
Journal
Materials Advances
Volume
6
Pages
8365-8369
No. of pages
5
DOI
https://doi.org/10.1039/d5ma01028d
Publication date
10-2025
Peer reviewed
Yes
Austrian Fields of Science 2012
205004 Functional materials, 104008 Catalysis
ASJC Scopus subject areas
Chemistry (miscellaneous), General Materials Science
Portal url
https://ucrisportal.univie.ac.at/en/publications/5496f727-fd49-43f2-a2e8-6b13307b39eb