Characterizing Olefin Selectivity and Stability of Silver Salts in Ionic Liquids Using Inverse Gas Chromatography

dc.contributor.author Eor, Philip
dc.contributor.author Ryoo, Donghyun
dc.contributor.author Nan, He
dc.contributor.author Anderson, Jared
dc.contributor.department Ames Laboratory
dc.contributor.department Chemistry
dc.date 2020-12-18T02:12:32.000
dc.date.accessioned 2021-02-24T20:28:05Z
dc.date.available 2021-02-24T20:28:05Z
dc.date.issued 2020-11-23
dc.description.abstract <p>Separation systems utilizing silver(I) ion-olefin complexation have limitations since silver(I) ions can be poisoned or reduced to metallic silver. Ionic liquids (ILs) are used as solvents for silver(I) ions to facilitate separations since their physico-chemical properties can be easily tuned. To develop separation systems with sustainable olefin selectivity, factors that affect silver(I) ion stability need to be understood. In this study, a total of 13 silver salt/IL mixtures were examined by inverse gas chromatography to identify the effects of silver salt anion and IL cation/anion combination on silver(I) ion stability. The effects of temperature and three different exposure gases on silver(I) ion stability were systematically studied. Exposing silver salt/IL mixtures to hydrogen at high temperatures had a greater effect on decreasing silver(I) ion-olefin complexation. Silver(I) ions from the silver bis[(trifluoromethyl)sulfonyl]imide ([NTf2–]) salt were more stable in [NTf2–]-containing ILs than in [BF4–]-containing ILs. Optimum mixtures exhibited high olefin selectivity and were stable beyond 90 h when exposed to hydrogen gas.</p>
dc.identifier archive/lib.dr.iastate.edu/ameslab_manuscripts/779/
dc.identifier.articleid 1780
dc.identifier.contextkey 20669373
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/779
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/93222
dc.language.iso en
dc.relation.ispartofseries IS-J 10359
dc.source.uri https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=2277&context=chem_pubs
dc.subject.disciplines Analytical Chemistry
dc.title Characterizing Olefin Selectivity and Stability of Silver Salts in Ionic Liquids Using Inverse Gas Chromatography
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication 42864f6e-7a3d-4be3-8b5a-0ae3c3830a11
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