DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kwon, Yeon Hye | ko |
dc.contributor.author | Min, Byunghyun | ko |
dc.contributor.author | Yang, Shaowei | ko |
dc.contributor.author | Koh, Dong-Yeun | ko |
dc.contributor.author | Bhave, Ramesh R. | ko |
dc.contributor.author | Nair, Sankar | ko |
dc.date.accessioned | 2019-01-22T08:38:08Z | - |
dc.date.available | 2019-01-22T08:38:08Z | - |
dc.date.created | 2018-12-25 | - |
dc.date.created | 2018-12-25 | - |
dc.date.created | 2018-12-25 | - |
dc.date.issued | 2018-02 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v.10, no.7, pp.6361 - 6368 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | http://hdl.handle.net/10203/249062 | - |
dc.description.abstract | Separation of radioisotope Kr-85 from Xe-136 is of importance in used nuclear fuel reprocessing. Membrane separation based on zeolite molecular sieves such as chabazite SAPO-34 is an attractive alternative to energy-intensive cryogenic distillation. We report the synthesis of SAPO-34 membranes with considerably enhanced performance via thickness reduction based upon control of a steam-assisted vapor solid conversion technique followed by ion exchange with alkali metal cations. The reduction of membrane thickness leads to a large increase in Kr permeance from 7.5 to 26.3 gas permeation units (GPU) with ideal Kr/Xe selectivities >20 at 298 K. Cation-exchanged membranes show large (>50%) increases in selectivity at ambient or slight subambient conditions. The adsorption, diffusion, and permeation characteristics of ion-exchanged SAPO-34 materials and membranes are investigated in detail, with potassium-exchanged SAPO-34 membranes showing particularly attractive performance. We then demonstrate the fabrication of selective SAPO-34 membranes on alpha-alumina hollow fibers. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Ion-Exchanged SAPO-34 Membranes for Krypton-Xenon Separation: Control of Permeation Properties and Fabrication of Hollow Fiber Membranes | - |
dc.type | Article | - |
dc.identifier.wosid | 000426143900034 | - |
dc.identifier.scopusid | 2-s2.0-85042356497 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 7 | - |
dc.citation.beginningpage | 6361 | - |
dc.citation.endingpage | 6368 | - |
dc.citation.publicationname | ACS APPLIED MATERIALS & INTERFACES | - |
dc.identifier.doi | 10.1021/acsami.7b18244 | - |
dc.contributor.localauthor | Koh, Dong-Yeun | - |
dc.contributor.nonIdAuthor | Kwon, Yeon Hye | - |
dc.contributor.nonIdAuthor | Min, Byunghyun | - |
dc.contributor.nonIdAuthor | Yang, Shaowei | - |
dc.contributor.nonIdAuthor | Bhave, Ramesh R. | - |
dc.contributor.nonIdAuthor | Nair, Sankar | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | fuel cycle | - |
dc.subject.keywordAuthor | off-gas | - |
dc.subject.keywordAuthor | membrane | - |
dc.subject.keywordAuthor | krypton | - |
dc.subject.keywordAuthor | separation | - |
dc.subject.keywordAuthor | zeolite | - |
dc.subject.keywordPlus | ZEOLITE MEMBRANES | - |
dc.subject.keywordPlus | GAS SEPARATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | SELECTIVITY | - |
dc.subject.keywordPlus | CONVERSION | - |
dc.subject.keywordPlus | CHABAZITE | - |
dc.subject.keywordPlus | LOCATION | - |
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