A fine-tuned fluorinated MOF addresses the needs for trace CO2 removal and air capture using physisorption.
Barbour, Leonard J.
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
Functional Materials Design, Discovery and Development (FMD3)
Advanced Membranes and Porous Materials Center (AMPMC)
MetadataShow full item record
AbstractThe development of functional solid-state materials for carbon capture at low carbon dioxide (CO2) concentrations, from con-fined spaces (<0.5 %) and particularly from air (400 ppm), is of prime importance with respect to energy and environment sustainability. Herein, we report the deliberate construction of a hydrolytically stable fluorinated metal-organic framework (MOF), NbOFFIVE-1-Ni, with the proper pore system (size, shape and functionality), ideal for efficient and effective traces carbon dioxide removal. Markedly, the CO2-selective NbOFFIVE-1-Ni exhibits the highest CO2 gravimetric and volumetric uptake (ca. 1.3 mmol/g and 51.4 cm3.cm-3) for physical adsorbents at 400 ppm CO2 and 298 K. Practically, the NbOFFIVE-1-Ni affords the complete CO2 desorption at 328 K under vacuum with an associated moderate energy input of 54 kJ/mol, typical for the full CO2 desorption in reference physical adsorbents but considerably lower than the conventional chemical sorbents. Noticeably, the contracted square-like channels, affording the close proximity of the fluorine centers, permitted the enhancement of the CO2-framework interactions and subsequently the attainment of an unprecedented CO2-selectivity at very low CO2 concentrations. The precise localization of the adsorbed CO2 at the vicinity of the periodically aligned fluorine centers, promoting the selective adsorption of CO2, is evidenced by the single-crystal X-ray diffraction study on the NbOFFIVE-1-Ni hosting CO2 molecules. Cyclic CO2/N2 mixed-gas column breakthrough experiments under dry and humid conditions corroborate the excellent CO2-selectivity under practical carbon capture conditions. Pertinently, the no-table hydrolytic stability positions the NbOFFIVE-1-Ni as the new benchmark adsorbent for direct air capture and CO2 removal from confined spaces.
CitationA fine-tuned fluorinated MOF addresses the needs for trace CO2 removal and air capture using physisorption. 2016 Journal of the American Chemical Society
SponsorsResearch reported in this publication was supported by King Abdullah University of Science and Technology (KAUST) under CCF/1/1972-02-01, CCF/1/1972-6-01 and CCF/1/1972-8-01.
PublisherAmerican Chemical Society (ACS)
Is Supplemented ByBhatt, P. M., Belmabkhout, Y., Cadiau, A., Adil, K., Shekhah, O., Shkurenko, A., … Eddaoudi, M. (2016). CCDC 1505385: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/ccdc.csd.cc1mjgtf
Bhatt, P. M., Belmabkhout, Y., Cadiau, A., Adil, K., Shekhah, O., Shkurenko, A., … Eddaoudi, M. (2016). CCDC 1505386: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/ccdc.csd.cc1mjgvg
- Valuing Metal-Organic Frameworks for Postcombustion Carbon Capture: A Benchmark Study for Evaluating Physical Adsorbents.
- Authors: Adil K, Bhatt PM, Belmabkhout Y, Abtab SMT, Jiang H, Assen AH, Mallick A, Cadiau A, Aqil J, Eddaoudi M
- Issue date: 2017 Oct
- Ultralow Parasitic Energy for Postcombustion CO<sub>2</sub> Capture Realized in a Nickel Isonicotinate Metal-Organic Framework with Excellent Moisture Stability.
- Authors: Nandi S, Collins S, Chakraborty D, Banerjee D, Thallapally PK, Woo TK, Vaidhyanathan R
- Issue date: 2017 Feb 8
- Monolith-Supported Amine-Functionalized Mg<sub>2</sub>(dobpdc) Adsorbents for CO<sub>2</sub> Capture.
- Authors: Darunte LA, Terada Y, Murdock CR, Walton KS, Sholl DS, Jones CW
- Issue date: 2017 May 24
- Partitioning MOF-5 into Confined and Hydrophobic Compartments for Carbon Capture under Humid Conditions.
- Authors: Ding N, Li H, Feng X, Wang Q, Wang S, Ma L, Zhou J, Wang B
- Issue date: 2016 Aug 17
- A Diaminopropane-Appended Metal-Organic Framework Enabling Efficient CO<sub>2</sub> Capture from Coal Flue Gas via a Mixed Adsorption Mechanism.
- Authors: Milner PJ, Siegelman RL, Forse AC, Gonzalez MI, Runčevski T, Martell JD, Reimer JA, Long JR
- Issue date: 2017 Sep 27