Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ryu, JH | - |
dc.contributor.author | Lee, H | - |
dc.contributor.author | Kim, YJ | - |
dc.contributor.author | Kang, YS | - |
dc.contributor.author | Kim, HS | - |
dc.date.accessioned | 2024-01-21T12:33:34Z | - |
dc.date.available | 2024-01-21T12:33:34Z | - |
dc.date.created | 2021-09-04 | - |
dc.date.issued | 2001-04-01 | - |
dc.identifier.issn | 0947-6539 | - |
dc.identifier.uri | https://pubs.kist.re.kr/handle/201004/140536 | - |
dc.description.abstract | The highly selective dry complex membrane AgBF4-cellulose acetate (CA) was prepared and tested for the separation of ethylene/ethane and propylene/propane mixtures. The maximum selectivity Cor olefin over paraffin was found to be 280 for the ethylene/ ethane mixture and 200 for the propylene/propane mixture. Solid-state interactions of AgBF4 with cellulose acetate (CA) and/or olefins have been investigated by using FT-IR, UV, and X-ray photoelectron spectroscopy (XPS). FT-IR and XPS studies clearly show that the silver ions are coordinated by carbonyl oxygen atoms among three different types of oxygen atoms present in CA - two in thc acetate group and one in the ether linkage. Upon incorporation of AgBF4 into CA, the carbonyl stretching frequency of the free cellulose acetate at 1750 cm(-1) shifts to a lower frequency by about 41 cm(-1). The binding energy corresponding to a carbonyl oxygen atom in the O 1s XPS spectrum shifts to a more positive binding energy by the incorporation of AgBF4. Reversible olefin coordination to silver ions has been observed by FT-IR and UV studies. Treat ment of the AgBF4-CA membrane placed in a gas cell with propylene produces a propylene-coordinated membrane in which coordinated propylene is easily replaced by other olefins such as 1,3-butadiene. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | COMPLEX MEMBRANES | - |
dc.subject | SEPARATION | - |
dc.subject | SALTS | - |
dc.subject | PROPYLENE | - |
dc.subject | KINETICS | - |
dc.title | Facilitated olefin transport by reversible olefin coordination to silver ions in a dry cellulose acetate membrane | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/1521-3765(20010401)7:7<1525::AID-CHEM1525>3.0.CO;2-U | - |
dc.description.journalClass | 1 | - |
dc.identifier.bibliographicCitation | CHEMISTRY-A EUROPEAN JOURNAL, v.7, no.7, pp.1525 - 1529 | - |
dc.citation.title | CHEMISTRY-A EUROPEAN JOURNAL | - |
dc.citation.volume | 7 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 1525 | - |
dc.citation.endPage | 1529 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.identifier.wosid | 000167983700021 | - |
dc.identifier.scopusid | 2-s2.0-0035312902 | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | COMPLEX MEMBRANES | - |
dc.subject.keywordPlus | SEPARATION | - |
dc.subject.keywordPlus | SALTS | - |
dc.subject.keywordPlus | PROPYLENE | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordAuthor | cellulose acetate | - |
dc.subject.keywordAuthor | facilitated transport | - |
dc.subject.keywordAuthor | IR spectroscopy | - |
dc.subject.keywordAuthor | membranes | - |
dc.subject.keywordAuthor | silver | - |
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