Effect of pendant isophthalic acid moieties on the adsorption properties of light hydrocarbons in HKUST-1-like tbo -MOFs: Application to methane purification and storage

Handle URI:
http://hdl.handle.net/10754/563266
Title:
Effect of pendant isophthalic acid moieties on the adsorption properties of light hydrocarbons in HKUST-1-like tbo -MOFs: Application to methane purification and storage
Authors:
Belmabkhout, Youssef ( 0000-0001-9952-5007 ) ; Mouttaki, Hasnaa; Eubank, Jarrod F.; Guillerm, Vincent ( 0000-0003-3460-223X ) ; Eddaoudi, Mohamed ( 0000-0003-1916-9837 )
Abstract:
Equilibrium adsorption of methane (CH4), C2+ gases (ethane (C2H6), ethylene (C2H4), propane (C3H8), and propylene (C3H6)), and carbon dioxide (CO2) was measured on a series of tbo-MOFs (topological analogues of the prototypical MOF, HKUST-1, correspondingly dubbed tbo-MOF-1), which were developed via the supermolecular building layer (SBL) pillaring strategy. Specifically, tbo-MOF-2 and its isoreticular, functionalized analogue, tbo-MOF-2-{CH2O[Ph(CO2H)2]}2 (or tbo-MOF-3), which is characterized by pendant isophthalic acid moieties freely pointing into the cavities, were evaluated on the basis of potential use in methane storage and C2+/CH4 separation. The parent, tbo-MOF-2, showed high gravimetric and volumetric CH4 uptake, close to the U.S. Department of Energy (DOE) target for methane storage at 35 bar and room temperature. Though the presence of the pendant isophthalic acid moiety in the analogous compound, tbo-MOF-3, led to a decrease in total CH4 uptake, due mainly to the reduced size of the cavities, interestingly, it increased the affinity of the SBL-based tbo-MOF platform for propane, propene, ethane, and ethylene at low pressures compared with CH4, due additionally to the enhanced interactions of the highly polarizable light hydrocarbons with the isophthalic acid moiety. Using Ideal Adsorption Solution Theory (IAST), the predicted mixture adsorption equilibria for the C3H8/CH4, C3H6/CH4, C2H6/CH4, C2H4/CH4, and C3H8/CO2 systems showed high adsorption selectivity for C2+ over methane for tbo-MOF-3 compared with tbo-MOF-2. The high working storage capacity of tbo-MOF-2 and the high affinity of tbo-MOF-3 for C2+ over CH4 and CO2 make tbo-MOF an ideal platform for studies in gas storage and separation.
KAUST Department:
Functional Materials Design, Discovery and Development (FMD3); Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Advanced Membranes and Porous Materials Research Center
Publisher:
Royal Society of Chemistry (RSC)
Journal:
RSC Adv.
Issue Date:
2014
DOI:
10.1039/c4ra12432d
Type:
Article
ISSN:
20462069
Sponsors:
This publication is based on work supported by the King Abdullah University of Science and Technology (KAUST) and the KAUST award number FIC/2010/06. The authors gratefully acknowledge Dr Acevedo-Feliz and A. R. Bailey from the KAUST Visualization Core Lab and Dr R. Luebke from FMD3 research group for their valuable contribution to the SBL approach video.
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Functional Materials Design, Discovery and Development (FMD3); Chemical Science Program

Full metadata record

DC FieldValue Language
dc.contributor.authorBelmabkhout, Youssefen
dc.contributor.authorMouttaki, Hasnaaen
dc.contributor.authorEubank, Jarrod F.en
dc.contributor.authorGuillerm, Vincenten
dc.contributor.authorEddaoudi, Mohameden
dc.date.accessioned2015-08-03T11:44:27Zen
dc.date.available2015-08-03T11:44:27Zen
dc.date.issued2014en
dc.identifier.issn20462069en
dc.identifier.doi10.1039/c4ra12432den
dc.identifier.urihttp://hdl.handle.net/10754/563266en
dc.description.abstractEquilibrium adsorption of methane (CH4), C2+ gases (ethane (C2H6), ethylene (C2H4), propane (C3H8), and propylene (C3H6)), and carbon dioxide (CO2) was measured on a series of tbo-MOFs (topological analogues of the prototypical MOF, HKUST-1, correspondingly dubbed tbo-MOF-1), which were developed via the supermolecular building layer (SBL) pillaring strategy. Specifically, tbo-MOF-2 and its isoreticular, functionalized analogue, tbo-MOF-2-{CH2O[Ph(CO2H)2]}2 (or tbo-MOF-3), which is characterized by pendant isophthalic acid moieties freely pointing into the cavities, were evaluated on the basis of potential use in methane storage and C2+/CH4 separation. The parent, tbo-MOF-2, showed high gravimetric and volumetric CH4 uptake, close to the U.S. Department of Energy (DOE) target for methane storage at 35 bar and room temperature. Though the presence of the pendant isophthalic acid moiety in the analogous compound, tbo-MOF-3, led to a decrease in total CH4 uptake, due mainly to the reduced size of the cavities, interestingly, it increased the affinity of the SBL-based tbo-MOF platform for propane, propene, ethane, and ethylene at low pressures compared with CH4, due additionally to the enhanced interactions of the highly polarizable light hydrocarbons with the isophthalic acid moiety. Using Ideal Adsorption Solution Theory (IAST), the predicted mixture adsorption equilibria for the C3H8/CH4, C3H6/CH4, C2H6/CH4, C2H4/CH4, and C3H8/CO2 systems showed high adsorption selectivity for C2+ over methane for tbo-MOF-3 compared with tbo-MOF-2. The high working storage capacity of tbo-MOF-2 and the high affinity of tbo-MOF-3 for C2+ over CH4 and CO2 make tbo-MOF an ideal platform for studies in gas storage and separation.en
dc.description.sponsorshipThis publication is based on work supported by the King Abdullah University of Science and Technology (KAUST) and the KAUST award number FIC/2010/06. The authors gratefully acknowledge Dr Acevedo-Feliz and A. R. Bailey from the KAUST Visualization Core Lab and Dr R. Luebke from FMD3 research group for their valuable contribution to the SBL approach video.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleEffect of pendant isophthalic acid moieties on the adsorption properties of light hydrocarbons in HKUST-1-like tbo -MOFs: Application to methane purification and storageen
dc.typeArticleen
dc.contributor.departmentFunctional Materials Design, Discovery and Development (FMD3)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.identifier.journalRSC Adv.en
dc.contributor.institutionDepartment of Chemistry, University of South Florida, 4202 East Fowler Avenue (CHE 205)Tampa, FL, United Statesen
dc.contributor.institutionDepartment of Chemistry and Physics, Florida Southern College, 111 Lake Hollingsworth Dr.Lakeland, FL, United Statesen
kaust.authorBelmabkhout, Youssefen
kaust.authorGuillerm, Vincenten
kaust.authorEddaoudi, Mohameden
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