Modification of Nafion (R) Using 3-mercaptopropyl Trimethoxysilane
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Hyejung | - |
dc.contributor.author | Park, Sung Bum | - |
dc.contributor.author | Oh, Myung-Hoon | - |
dc.contributor.author | Coo, Kyungsik | - |
dc.contributor.author | Park, Yong-il | - |
dc.contributor.author | Suzuki, Satoshi | - |
dc.contributor.author | Nagai, Masayuki | - |
dc.contributor.author | Prinz, Fritz B. | - |
dc.date.available | 2020-04-24T13:25:48Z | - |
dc.date.created | 2020-03-31 | - |
dc.date.issued | 2010-04 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/2783 | - |
dc.description.abstract | The modification of a Nafion (R) membrane by incorporation of 3-mercaptopropyltrimethoxysilane (MPTS) is investigated through a simple sol-gel process to reduce the methanol crossover without sacrificing the proton conductivity. The MPTS monomers incorporated in the Nation (R) matrix are hydrolyzed, forming a silicate phase by polymerization. The thiols of MPTS are finally oxidized into a sulfonic acid form. Compared to Nation (R), the obtained modified membranes show significantly reduced solvent uptake with an accompanying low volume expansion ratio. A maximum 42% methanol crossover reduction is observed with improved proton conductivity. The proton conductivities of the obtained membranes increase from 8.0 x 10(-3) Scm(-1) to 1.9 x 10(-2) Scm(-1) at 70 degrees C with increasing MPTS amount from 0 to 1.96 wt%. The low methanol crossover and the high proton conductivity of the modified membranes are attributable to the MPTS-derived silicate phase blocking the ionic cluster pathway and to the simultaneous supply of a high sulfonic acid concentration to the Nation (R) matrix. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.subject | PROTON-EXCHANGE MEMBRANE | - |
dc.subject | COMPOSITE MEMBRANES | - |
dc.subject | MONTMORILLONITE | - |
dc.subject | IONOMERS | - |
dc.subject | SILOXANE | - |
dc.title | Modification of Nafion (R) Using 3-mercaptopropyl Trimethoxysilane | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Oh, Myung-Hoon | - |
dc.contributor.affiliatedAuthor | Coo, Kyungsik | - |
dc.contributor.affiliatedAuthor | Park, Yong-il | - |
dc.identifier.doi | 10.3938/jkps.56.1215 | - |
dc.identifier.scopusid | 2-s2.0-77954852849 | - |
dc.identifier.wosid | 000276783000035 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.56, no.4, pp.1215 - 1222 | - |
dc.citation.title | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.volume | 56 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 1215 | - |
dc.citation.endPage | 1222 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001438687 | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | PROTON-EXCHANGE MEMBRANE | - |
dc.subject.keywordPlus | COMPOSITE MEMBRANES | - |
dc.subject.keywordPlus | MONTMORILLONITE | - |
dc.subject.keywordPlus | IONOMERS | - |
dc.subject.keywordPlus | SILOXANE | - |
dc.subject.keywordAuthor | Proton-conducting membrane | - |
dc.subject.keywordAuthor | Nafion | - |
dc.subject.keywordAuthor | 3-mercaptopropyl trimethoxysilane | - |
dc.subject.keywordAuthor | Direct methanol fuel cell | - |
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