Advances in Shaping of Metal–Organic Frameworks for CO2 Capture: Understanding the Effect of Rubbery and Glassy Polymeric Binders
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Chemical Science Program
Functional Materials Design, Discovery and Development (FMD3)
Physical Science and Engineering (PSE) Division
Online Publication Date2018-11-21
Print Publication Date2018-12-12
Permanent link to this recordhttp://hdl.handle.net/10754/630695
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AbstractDevelopment of advanced CO capture physical adsorbents in powdered form is a key step, nevertheless their transformation into particulates is a process of paramount importance for their deployment and implementation in the real-world applications. Herein we report a facile and quick shaping process of one of the best solid-state materials from the class of metal-organic frameworks (MOFs) for CO capture at a concentration below 15%, that is, NbOFFIVE-1-Ni driven mainly by strong but purely physical based adsorption. Purposely, NbOFFIVE-1-Ni powders were transformed into shaped bodies using select polymers as binders and their associated CO capture properties were thoroughly evaluated before and after shaping. Markedly, we have selected two distinct polymers, namely a rubbery polymer (polyethelyneglycol = PEG) and a glassy polymer (poly(methyl methacrylate) = PMMA). To corroborate the universality of our shaping strategy, we indeed successfully made MOF beads with high mechanical stability based on well-known MOFs like UiO-66, ZIF-8, and HKUST-1. Prominently, the results show that the glassy polymer is a better binder than the rubbery polymer, offering the requisite high mechanical stability with comparatively minimal alteration in gas adsorption upon loading of 10% polymer.
CitationMallick A, Mouchaham G, Bhatt PM, Liang W, Belmabkhout Y, et al. (2018) Advances in Shaping of Metal–Organic Frameworks for CO2 Capture: Understanding the Effect of Rubbery and Glassy Polymeric Binders. Industrial & Engineering Chemistry Research 57: 16897–16902. Available: http://dx.doi.org/10.1021/acs.iecr.8b03937.
SponsorsThe research reported in this publication was supported by Aramco and by the King Abdullah University of Science and Technology (KAUST).
PublisherAmerican Chemical Society (ACS)