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Hierarchical MOF-xerogel monolith composites from embedding MIL-100(Fe,Cr) and MIL-101(Cr) in resorcinol-formaldehyde xerogels for water adsorption applications

Wickenheisser, Martin and Herbst, Annika and Tannert, René and Milow, Barbara and Janiak, Christoph (2015) Hierarchical MOF-xerogel monolith composites from embedding MIL-100(Fe,Cr) and MIL-101(Cr) in resorcinol-formaldehyde xerogels for water adsorption applications. Microporous and Mesoporous Materials, 215, pp. 143-153. Elsevier. DOI: 10.1016/j.micromeso.2015.05.017 ISSN 1387-1811

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Official URL: http://www.sciencedirect.com/science/article/pii/S1387181115002863

Abstract

Shaping of otherwise powdery metal-organic frameworks is recognized as a more-and-more important issue to advance them to the application stage. Monolithic MOF composites were synthesized using micro-to-mesoporous MIL-100(Fe,Cr) and MIL-101(Cr) as thermally and chemically stable MOFs together with a mesoporous resorcinol-formaldehyde based xerogel as binding agent. The monolithic bodies could be loaded with up to 77 wt% of powdery MIL material under retention of the MIL surface area and porosities (from N2 adsorption) by pre-polymerization of the xerogel solution. The obtained monoliths are mechanically stable and adsorb close to the expected water vapor amount according to the MIL weight percentage. There is no loss of BET surface area, porosity and water uptake capacity especially for the MIL-101(Cr) composites. Water vapor adsorption isotherms show that the 77 wt% MIL-101(Cr) loaded composite even features a slightly increased water vapor uptake compared to pure MIL-101(Cr) up to a relative vapor pressure of P · P 0 − 1 = 0.5 . These hydrophilic monolithic composites could be applied for heat transformation application such as thermally driven adsorption chillers or adsorption heat pumps.

Item URL in elib:https://elib.dlr.de/96823/
Document Type:Article
Title:Hierarchical MOF-xerogel monolith composites from embedding MIL-100(Fe,Cr) and MIL-101(Cr) in resorcinol-formaldehyde xerogels for water adsorption applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wickenheisser, MartinHeinrich-Heine-Universität DüsseldorfUNSPECIFIED
Herbst, AnnikaHeinrich-Heine-Universität DüsseldorfUNSPECIFIED
Tannert, RenéRene.Tannert (at) dlr.dehttps://orcid.org/0000-0001-9484-8886
Milow, BarbaraBarbara.Milow (at) dlr.deUNSPECIFIED
Janiak, ChristophHeinrich-Heine-Universität Düsseldorfhttps://orcid.org/0000-0002-6288-9605
Date:1 October 2015
Journal or Publication Title:Microporous and Mesoporous Materials
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:215
DOI :10.1016/j.micromeso.2015.05.017
Page Range:pp. 143-153
Publisher:Elsevier
ISSN:1387-1811
Status:Published
Keywords:Metal-organic framework Resorcinol-formaldehyde xerogels Monoliths Water adsorption Heat transformation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC Fahrzeugkonzepte (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogele
Deposited By: Tannert, Dr. René
Deposited On:17 Sep 2015 07:36
Last Modified:31 Jul 2019 19:53

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