Acoustomicrofluidic assembly of oriented and simultaneously activated metal–organic frameworks

Heba Ahmed, Amgad R. Rezk, Joseph J. Richardson, Lauren K. Macreadie, Ravichandar Babarao, Edwin L. H. Mayes, Lillian Lee and Leslie Y. Yeo ()
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Heba Ahmed: RMIT University
Amgad R. Rezk: RMIT University
Joseph J. Richardson: The University of Melbourne
Lauren K. Macreadie: Commonwealth Scientific and Industrial Research Organisation (CSIRO)
Ravichandar Babarao: Commonwealth Scientific and Industrial Research Organisation (CSIRO)
Edwin L. H. Mayes: School of Science, RMIT University
Lillian Lee: RMIT University
Leslie Y. Yeo: RMIT University

Nature Communications, 2019, vol. 10, issue 1, 1-9

Abstract: Abstract The high surface area and porosity, and limitless compound and network combinations between the metal ions and organic ligands making up metal–organic frameworks (MOFs) offer tremendous opportunities for their use in many applications. While numerous methods have been proposed for the synthesis of MOF powders, it is often difficult to obtain oriented crystals with these techniques. Further, the need for additional post-synthesis steps to activate the crystals and release them from the substrate presents a considerable production challenge. Here, we report an acoustically-driven microcentrifugation platform that facilitates fast convective solutal transport, allowing the synthesis of MOF crystals in as short as five minutes. The crystals are not only oriented due to long-range out-of-plane superlattice ordering aided by molecular dipole polarization under the acoustoelectric coupling, but also simultaneously activated during the synthesis process.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10173-5

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DOI: 10.1038/s41467-019-10173-5

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