Synthesis of metal-organic frameworks by continuous flow

Bayliss, Peter A., Ibarra, I.A., Perez, E., Yang, S., Tang, Chiu C., Poliakoff, Martyn and Schröder, Martin (2014) Synthesis of metal-organic frameworks by continuous flow. Green Chemistry, 16 (8). pp. 3796-3802. ISSN 1463-9262

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A continuous flow process for the synthesis of a metal-organic framework using only water as the reaction medium and requiring only short residence times is described. This affords a new route to scale-up of materials incorporating many of the principles of green chemistry. The process is demonstrated by the synthesis MIL-53(Al) via continuous flow reaction requiring only 5-6 minutes with a space time yield of 1300 kg m-3 d-1. We have demonstrated the synthesis of 500 g of MIL-53(Al) using this process, which can be scaled-up further by simply feeding further solutions of metal salt and ligand through the reactor. The product has a higher surface area and a better colour than a commercially produced sample of this MOF. In addition, a new and effective method for the extraction of terephthalic acid from within the pores of MIL-53(Al) using supercritical ethanol has been developed, representing a new methodology for activation and removal of substrates from porous hosts.

Item Type: Article
Keywords: Continuous process, flow chemistry, metal-organic framework, high temperature water, green chemistry, MIL-53, HKUST-1
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Chemistry
Identification Number:
Depositing User: Schroder, Martin
Date Deposited: 26 Aug 2015 13:56
Last Modified: 04 May 2020 16:49

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