A fine-tuned Metal-Organic Framework for Autonomous Indoor Moisture Control .
Barbour, Leonard J.
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Functional Materials Design, Discovery and Development (FMD3)
Physical Sciences and Engineering (PSE) Division
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AbstractConventional adsorbents, namely zeolites and silica gel, are often used to control humidity by adsorbing water; however, adsorbents capable of dual functionality of humidification and dehumidification, offering the desired control of the moisture level at room temperature, has yet to be explored. Here we report Y-shp-MOF-5, a hybrid microporous highly-connected Rare-Earth based metal-organic framework (MOF), with dual functionality for moisture control within the recommended range of relative humidity (45% to 65% RH) set by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE). Y-shp-MOF-5 exhibits exceptional structural integrity, robustness and unique humidity-control performance as confirmed by the large number (thousand) of conducted water vapor adsorption-desorption cycles. The retained structural integrity and the mechanism of water sorption were corroborated using in situ single crystal X-ray diffraction (SCXRD) studies. The resultant working water uptake of 0.45 g.g-1 is solely regulated by a simple adjustment of the relative humidity, positioning this hydrolytically stable MOF as a prospective adsorbent for humidity control in confined spaces such as space shuttles, aircraft cabins and air-conditioned buildings.
CitationAbdulHalim RG, Bhatt PM, Belmabkhout Y, Shkurenko A, Adil K, et al. (2017) A fine-tuned Metal-Organic Framework for Autonomous Indoor Moisture Control . Journal of the American Chemical Society. Available: http://dx.doi.org/10.1021/jacs.7b04132.
SponsorsResearch reported in this publication was supported by King Abdullah University of Science and Technology (KAUST).
PublisherAmerican Chemical Society (ACS)