Characterisation of metal organic frameworks for adsorption cooling


Silica gel/water adsorption cooling systems suffer from size, performance and cost limitations. Therefore, there is a need for new adsorbent materials that outperform silica gel. Metal organic frameworks (MOFs) are new micro-porous materials that have extraordinary porosity and uniform structure. Due to the lack of published data that characterise MOF/water adsorption, this paper experimentally investigates the adsorption characteristics of HKUST-1 (Cu-BTC (copper benzene-1,3,5-tricarboxylate), C 18H 6Cu 3O 12) and MIL-100 (Fe-BTC (Iron 1,3,5- benzenetricarboxylate), C 9H 3FeO 6) MOFs compared to silica gel RD-2060. The adsorption characteristics of Silica gel RD-2060, HKUST-1 and MIL-100 were determined using an advanced gravimetric dynamic vapour sorption analyser (DVS). Results showed that HKUST-1 performed better than silica gel RD-2060 with an increase of water uptake of 93.2%, which could lead to a considerable increase in refrigerant flow rate, cooling capacity and/or reducing the size of the adsorption system. However, MIL-100 MOF showed reduced water uptake comparable to silica gel RD-2060 for water chilling applications with evaporation at 5 0C. These results highlight the potential of using MOF materials to improve the efficiency of water adsorption cooling systems.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences
Funding Information: The authors wish to thank Weatherite Holdings Ltd and the Engineering and Physical Science Research Council (EPSRC) for sponsoring the project. Also thanks are due to Dr. Rachel Brisdon for providing the access to the DVS analyser.
Additional Information: © 2012 Elsevier Ltd. Open access under CC BY licence
Uncontrolled Keywords: Adsorption cooling,HKUST-1,Metal organic frameworks,MIL-100,Silica gel RD-2060/water,Condensed Matter Physics,Mechanical Engineering,Fluid Flow and Transfer Processes
Publication ISSN: 1879-2189
Last Modified: 20 May 2024 07:33
Date Deposited: 07 Oct 2019 14:51
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.sci ... 6047?via%3Dihub (Publisher URL)
PURE Output Type: Article
Published Date: 2012-12-01
Authors: Rezk, Ahmed (ORCID Profile 0000-0002-1329-4146)
Al-Dadah, Raya
Mahmoud, Saad
Elsayed, Ahmed



Version: Published Version

License: Creative Commons Attribution

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