Publications
Detailed Information
Highly stabilized silver polymer electrolytes and their application to facilitated olefin transport membranes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kang, Sang Wook | - |
dc.contributor.author | Kim, Jong Hak | - |
dc.contributor.author | Oh, Kyung Seok | - |
dc.contributor.author | Won, Jongok | - |
dc.contributor.author | Char, Kookheon | - |
dc.contributor.author | Kim, Hoon Sik | - |
dc.contributor.author | Kang, Yong Soo | - |
dc.date.accessioned | 2009-07-20T07:18:39Z | - |
dc.date.available | 2009-07-20T07:18:39Z | - |
dc.date.issued | 2004-04-22 | - |
dc.identifier.citation | J. Memb. Sci. 236 (2004) 163 | en |
dc.identifier.issn | 0376-7388 | - |
dc.identifier.uri | https://hdl.handle.net/10371/5774 | - |
dc.description.abstract | Polymer electrolyte membranes consisting of AgBF4 dissolved in poly(ethylene phthalate) (PEP) exhibit significantly better long-term stability of performance in the separation of propylene/propane mixtures than AgBF4 in poly(2-ethyl-2-oxazoline) (POZ) membranes. This improvement in stability is due to the suppression of the reduction of silver ions to silver metal nanoparticles by the formation of stable chelates between the phthalic groups of PEP and silver ions, which was confirmed by the observation of a large shift of the PEP C=O stretching band with the addition of AgBF4; the peak shift for PEP/AgBF4 is twice that for POZ/AgBF4. Transmission electron micrograph (TEM) results confirmed that the rate of silver metal nanoparticle formation in PEP/AgBF4 is significantly lower than that in POZ/AgBF4. We conclude that the strong coordination between phthalic groups in PEP and silver ions which results in the formation of stable chelates is of pivotal importance in preventing the reduction of silver ions to silver metal and consequently in improving the performance of the membrane in the separation of propylene/propane mixtures. | en |
dc.description.sponsorship | The authors acknowledge the financial support of the Ministry of Science and Technology of Korea through the Creative Research Initiatives program. Kookheon Char also acknowledges financial support from the National Research Laboratory Program (Grant M1-0104-00-0191) and the Ministry of Education through the Brain Korea 21 Program of Seoul National University. | en |
dc.language.iso | en | - |
dc.publisher | Elsevier | en |
dc.subject | Poly(ethylene phthalate); | en |
dc.subject | Olefin | en |
dc.subject | Facilitated transport | en |
dc.subject | Stability and silver | en |
dc.title | Highly stabilized silver polymer electrolytes and their application to facilitated olefin transport membranes | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 강상욱 | - |
dc.contributor.AlternativeAuthor | 김종학 | - |
dc.contributor.AlternativeAuthor | 오경석 | - |
dc.contributor.AlternativeAuthor | 원종옥 | - |
dc.contributor.AlternativeAuthor | 차국헌 | - |
dc.contributor.AlternativeAuthor | 김훈식 | - |
dc.contributor.AlternativeAuthor | 강용수 | - |
dc.identifier.doi | 10.1016/j.memsci.2004.02.020 | - |
- Appears in Collections:
- Files in This Item:
- There are no files associated with this item.
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.