Enhanced Selectivity and Uptake Capacity of CO2 and Toluene Adsorption in Co0.5 M0.33 MoS4 (M= Sb or Y) Chalcogels by Impregnated Metal Salts

Handle URI:
http://hdl.handle.net/10754/626642
Title:
Enhanced Selectivity and Uptake Capacity of CO2 and Toluene Adsorption in Co0.5 M0.33 MoS4 (M= Sb or Y) Chalcogels by Impregnated Metal Salts
Authors:
Adhiam, Fatima Abdullah Ahmed ( 0000-0001-9995-5517 ) ; Rothenberger, Alexander
Abstract:
The synthesis of metal chalcogenide aerogels Co0.5M0.33MoS4 (M= Sb or Y) by the sol-gel method is reported. In this system, the building blocks [MoS4]2− chelated with Co2+ and (Sb3+) or (Y3+) salts in nonaqueous solvents forming amorphous networks with a gel property. The chalcogels obtained after supercritical drying have BET surface areas of 176 m2 g−1 (Co0.5Sb0.33MoS4) and 145 m2 g−1 (Co0.5Y0.33MoS4). Electron microscopy and physisorption studies reveal that the new materials are porous with wide pore size distribution and average pore width of 16 nm. These chalcogels show higher adsorption capacity of toluene vapor (Co0.5Sb0.33MoS4: 387 mg g−1) and (Co0.5Y0.33MoS4: 304 mg g−1) over cyclohexane vapor and high selectivity of CO2 over CH4 or H2, Co0.5Sb0.33MoS4 (CO2/H2: 80 and CO2/CH4: 21), Co0.5Y0.33MoS4 (CO2/H2: 27 and CO2/CH4: 15). We also demonstrated that the impregnation of various metal species like Li+, Mg2+, and Ni2+ significantly enhanced the uptake capacity and selectivity of toluene and CO2 adsorptions in the chacogels.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Edhaim F, Rothenberger A (2017) Enhanced Selectivity and Uptake Capacity of CO2 and Toluene Adsorption in Co0.5 M0.33 MoS4 (M= Sb or Y) Chalcogels by Impregnated Metal Salts. ChemistrySelect 2: 10609–10617. Available: http://dx.doi.org/10.1002/slct.201702393.
Publisher:
Wiley-Blackwell
Journal:
ChemistrySelect
KAUST Grant Number:
BAS/1/1302-01-01
Issue Date:
17-Nov-2017
DOI:
10.1002/slct.201702393
Type:
Article
ISSN:
2365-6549
Sponsors:
This work was supported by King Abdullah University of Science and Technology, KAUST baseline funding(BAS/1/1302-01-01). We thank Dr. Daliang Zhang for performing TEM analysis. Special thanks to Dr. Mohamed Nejib for performing XPS analysis.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1002/slct.201702393/full
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAdhiam, Fatima Abdullah Ahmeden
dc.contributor.authorRothenberger, Alexanderen
dc.date.accessioned2018-01-01T12:19:05Z-
dc.date.available2018-01-01T12:19:05Z-
dc.date.issued2017-11-17en
dc.identifier.citationEdhaim F, Rothenberger A (2017) Enhanced Selectivity and Uptake Capacity of CO2 and Toluene Adsorption in Co0.5 M0.33 MoS4 (M= Sb or Y) Chalcogels by Impregnated Metal Salts. ChemistrySelect 2: 10609–10617. Available: http://dx.doi.org/10.1002/slct.201702393.en
dc.identifier.issn2365-6549en
dc.identifier.doi10.1002/slct.201702393en
dc.identifier.urihttp://hdl.handle.net/10754/626642-
dc.description.abstractThe synthesis of metal chalcogenide aerogels Co0.5M0.33MoS4 (M= Sb or Y) by the sol-gel method is reported. In this system, the building blocks [MoS4]2− chelated with Co2+ and (Sb3+) or (Y3+) salts in nonaqueous solvents forming amorphous networks with a gel property. The chalcogels obtained after supercritical drying have BET surface areas of 176 m2 g−1 (Co0.5Sb0.33MoS4) and 145 m2 g−1 (Co0.5Y0.33MoS4). Electron microscopy and physisorption studies reveal that the new materials are porous with wide pore size distribution and average pore width of 16 nm. These chalcogels show higher adsorption capacity of toluene vapor (Co0.5Sb0.33MoS4: 387 mg g−1) and (Co0.5Y0.33MoS4: 304 mg g−1) over cyclohexane vapor and high selectivity of CO2 over CH4 or H2, Co0.5Sb0.33MoS4 (CO2/H2: 80 and CO2/CH4: 21), Co0.5Y0.33MoS4 (CO2/H2: 27 and CO2/CH4: 15). We also demonstrated that the impregnation of various metal species like Li+, Mg2+, and Ni2+ significantly enhanced the uptake capacity and selectivity of toluene and CO2 adsorptions in the chacogels.en
dc.description.sponsorshipThis work was supported by King Abdullah University of Science and Technology, KAUST baseline funding(BAS/1/1302-01-01). We thank Dr. Daliang Zhang for performing TEM analysis. Special thanks to Dr. Mohamed Nejib for performing XPS analysis.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/slct.201702393/fullen
dc.titleEnhanced Selectivity and Uptake Capacity of CO2 and Toluene Adsorption in Co0.5 M0.33 MoS4 (M= Sb or Y) Chalcogels by Impregnated Metal Saltsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalChemistrySelecten
kaust.authorAdhiam, Fatima Abdullah Ahmeden
kaust.authorRothenberger, Alexanderen
kaust.grant.numberBAS/1/1302-01-01en
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