A supermolecular building layer approach for gas separation and storage applications: the eea and rtl MOF platforms for CO 2 capture and hydrocarbon separation
Type
ArticleKAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Science Program
Functional Materials Design, Discovery and Development (FMD3)
Physical Science and Engineering (PSE) Division
Date
2015Permanent link to this record
http://hdl.handle.net/10754/579558
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The supermolecular building layer (SBL) approach was employed to deliberately synthesize five novel metal–organic frameworks (1–5) with an exposed array of amide or amine functionalities within their pore system. The ability to decorate the pores with nitrogen donor moieties offers potential to evaluate/elucidate the structure–adsorption property relationship. Two MOF platforms, eea-MOF and rtl-MOF, based on pillaring of kgm-a or sql-a layers with heterofunctional 3-connected organic building blocks were targeted and constructed to purposely introduce and expose the desired amide or amine functionalities. Interestingly, gas adsorption properties of eea-MOF-4 (1) and eea-MOF-5 (2) showed that by simply altering the nitrogen donor position within the ligand, it is possible to relatively reduce the pore size of the related eea-MOF material and subsequently increase the associated CO2 uptake. The slightly confined pore space in 2, relative to 1, has enabled an enhancement of the pore local charge density and thus the observed relative increase in the CO2 and H2 isosteric heat of adsorption (Qst). In addition, light hydrocarbon adsorption studies revealed that 2 is more selective toward C2H6 and C3H8 over CH4 than 1, as exemplified for C2H6 : CH4 (5 : 95) or C3H8 : CH4 (5 : 95) binary gas mixtures.Citation
A supermolecular building layer approach for gas separation and storage applications: the eea and rtl MOF platforms for CO 2 capture and hydrocarbon separation 2015, 3 (12):6276 J. Mater. Chem. APublisher
Royal Society of Chemistry (RSC)Journal
J. Mater. Chem. AAdditional Links
http://xlink.rsc.org/?DOI=C4TA07115HRelations
Is Supplemented By:- [Dataset]
Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1036006: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13s1kh. DOI: 10.5517/cc13s1kh HANDLE: 10754/624388 - [Dataset]
Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1036005: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13s1jg. DOI: 10.5517/cc13s1jg HANDLE: 10754/624387 - [Dataset]
Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1044642: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc14214d. DOI: 10.5517/cc14214d HANDLE: 10754/624398 - [Dataset]
Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1036004: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13s1hf. DOI: 10.5517/cc13s1hf HANDLE: 10754/624386 - [Dataset]
Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1036007: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13s1lj. DOI: 10.5517/cc13s1lj HANDLE: 10754/624389
ae974a485f413a2113503eed53cd6c53
10.1039/C4TA07115H