Enhancement in CO2 Adsorption Capacity and Selectivity in the Chalcogenide Aerogel CuSb2S4 by Post-synthetic Modification with LiCl

Handle URI:
http://hdl.handle.net/10754/577235
Title:
Enhancement in CO2 Adsorption Capacity and Selectivity in the Chalcogenide Aerogel CuSb2S4 by Post-synthetic Modification with LiCl
Authors:
Ahmed, Ejaz; Rothenberger, Alexander
Abstract:
The new chalcogel CuSb2S4 was obtained by reacting Cu(OAc)2·H2O with KSbS2 in a water/formamide mixture at room temperature. In order to modify the gas adsorption capacity the synthesized CuSb2S4 aerogel was loaded with different amounts of LiCl. CO2 adsorption measurements on the CuSb2S4 aerogel before and after treatment with LiCl showed more than three times increased uptake of the LiCl-modified chalcogel. The selectivities of the gas pairs CO2/H2 and CO2/CH4 in the LiCl-treated chalcogel are 235 and 105 respectively and amongst the highest reported for chalcogenide-based aerogels. In comparison with other porous materials like zeolites, activated carbon and most of the Metal Organic Frameworks (MOFs) or Porous Organic Frameworks (POFs), our synthesized aerogels show good air and moisture stability. Although, the CO2 storage capacity of our aerogels is relatively low, however the selectivity of CO2 over H2 or CH4 in LiCl-loaded aerogels are higher than in zeolites, activated carbon as well as some MOFs like Cu-BTC and MOF-5 etc.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Enhancement in CO2 Adsorption Capacity and Selectivity in the Chalcogenide Aerogel CuSb2S4 by Post-synthetic Modification with LiCl 2015 Microporous and Mesoporous Materials
Publisher:
Elsevier BV
Journal:
Microporous and Mesoporous Materials
Issue Date:
11-Sep-2015
DOI:
10.1016/j.micromeso.2015.09.010
Type:
Article
ISSN:
13871811
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S1387181115004898
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAhmed, Ejazen
dc.contributor.authorRothenberger, Alexanderen
dc.date.accessioned2015-09-13T12:09:43Zen
dc.date.available2015-09-13T12:09:43Zen
dc.date.issued2015-09-11en
dc.identifier.citationEnhancement in CO2 Adsorption Capacity and Selectivity in the Chalcogenide Aerogel CuSb2S4 by Post-synthetic Modification with LiCl 2015 Microporous and Mesoporous Materialsen
dc.identifier.issn13871811en
dc.identifier.doi10.1016/j.micromeso.2015.09.010en
dc.identifier.urihttp://hdl.handle.net/10754/577235en
dc.description.abstractThe new chalcogel CuSb2S4 was obtained by reacting Cu(OAc)2·H2O with KSbS2 in a water/formamide mixture at room temperature. In order to modify the gas adsorption capacity the synthesized CuSb2S4 aerogel was loaded with different amounts of LiCl. CO2 adsorption measurements on the CuSb2S4 aerogel before and after treatment with LiCl showed more than three times increased uptake of the LiCl-modified chalcogel. The selectivities of the gas pairs CO2/H2 and CO2/CH4 in the LiCl-treated chalcogel are 235 and 105 respectively and amongst the highest reported for chalcogenide-based aerogels. In comparison with other porous materials like zeolites, activated carbon and most of the Metal Organic Frameworks (MOFs) or Porous Organic Frameworks (POFs), our synthesized aerogels show good air and moisture stability. Although, the CO2 storage capacity of our aerogels is relatively low, however the selectivity of CO2 over H2 or CH4 in LiCl-loaded aerogels are higher than in zeolites, activated carbon as well as some MOFs like Cu-BTC and MOF-5 etc.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S1387181115004898en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Microporous and Mesoporous Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Microporous and Mesoporous Materials, 11 September 2015. DOI: 10.1016/j.micromeso.2015.09.010en
dc.subjectAdsorptionen
dc.subjectCarbon Dioxideen
dc.subjectChalcogelen
dc.subjectMesoporous Materialsen
dc.titleEnhancement in CO2 Adsorption Capacity and Selectivity in the Chalcogenide Aerogel CuSb2S4 by Post-synthetic Modification with LiClen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalMicroporous and Mesoporous Materialsen
dc.eprint.versionPost-printen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorRothenberger, Alexanderen
kaust.authorAhmed, Ejazen
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