Engineering substructure morphology of asymmetric carbon molecular sieve hollow fiber membranes
In this study, a novel pre-pyrolysis treatment is developed to restrict the morphology collapse in asymmetric carbon molecular sieve (CMS) hollow fiber membranes. The technique is referred as V-treatment, due to the use of a sol–gel crosslinking reaction between an organic-alkoxy silane (vinyltrimet...
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| Veröffentlicht in: | Carbon (New York) 2014-09, Vol.76, p.417-434 |
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| creator | Bhuwania, Nitesh Labreche, Ying Achoundong, Carine S.K. Baltazar, Jose Burgess, Steven K. Karwa, Shweta Xu, Liren Henderson, Clifford L. Williams, P. Jason Koros, William J. |
| description | In this study, a novel pre-pyrolysis treatment is developed to restrict the morphology collapse in asymmetric carbon molecular sieve (CMS) hollow fiber membranes. The technique is referred as V-treatment, due to the use of a sol–gel crosslinking reaction between an organic-alkoxy silane (vinyltrimethoxysilane) and moisture. The V-treatment technique enables restricting the microscale morphology collapse in asymmetric CMS membranes without having a chemical reaction with the polymer precursor material. The effect of V-treatment is reported on two different polyimide precursors: Matrimid® and 6FDA:BPDA-DAM. For both the CMS V-treated Matrimid® and 6FDA:BPDA-DAM hollow fibers, a significant reduction up to 5–6-fold in apparent membrane skin thickness is observed compared to the CMS from untreated precursors. This improvement translates to an increase in gas separation productivities for both pure and mixed gas feeds in CMS V-treated Matrimid® and 6FDA:BPDA-DAM hollow fiber membranes. Moreover, several characterization analyses and transport results for V-treatment method using 100% VTMS are reported herein. |
| doi_str_mv | 10.1016/j.carbon.2014.05.008 |
| format | Article |
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For both the CMS V-treated Matrimid® and 6FDA:BPDA-DAM hollow fibers, a significant reduction up to 5–6-fold in apparent membrane skin thickness is observed compared to the CMS from untreated precursors. This improvement translates to an increase in gas separation productivities for both pure and mixed gas feeds in CMS V-treated Matrimid® and 6FDA:BPDA-DAM hollow fiber membranes. Moreover, several characterization analyses and transport results for V-treatment method using 100% VTMS are reported herein.</description><identifier>ISSN: 0008-6223</identifier><identifier>EISSN: 1873-3891</identifier><identifier>DOI: 10.1016/j.carbon.2014.05.008</identifier><identifier>CODEN: CRBNAH</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Asymmetry ; Carbon ; Chemical synthesis methods ; Chemistry ; Collapse ; Colloidal gels. Colloidal sols ; Colloidal state and disperse state ; Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Fibers ; General and physical chemistry ; Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties ; Materials science ; Materials synthesis; materials processing ; Membranes ; Methods of nanofabrication ; Molecular sieves ; Morphology ; Physics ; Precursors ; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</subject><ispartof>Carbon (New York), 2014-09, Vol.76, p.417-434</ispartof><rights>2014 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c472t-6fd95516b6a0c6e3d3c16e8eea97808cdbd7c7b46b41b2120f3b8e26deb960473</citedby><cites>FETCH-LOGICAL-c472t-6fd95516b6a0c6e3d3c16e8eea97808cdbd7c7b46b41b2120f3b8e26deb960473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0008622314004485$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28523027$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Bhuwania, Nitesh</creatorcontrib><creatorcontrib>Labreche, Ying</creatorcontrib><creatorcontrib>Achoundong, Carine S.K.</creatorcontrib><creatorcontrib>Baltazar, Jose</creatorcontrib><creatorcontrib>Burgess, Steven K.</creatorcontrib><creatorcontrib>Karwa, Shweta</creatorcontrib><creatorcontrib>Xu, Liren</creatorcontrib><creatorcontrib>Henderson, Clifford L.</creatorcontrib><creatorcontrib>Williams, P. Jason</creatorcontrib><creatorcontrib>Koros, William J.</creatorcontrib><title>Engineering substructure morphology of asymmetric carbon molecular sieve hollow fiber membranes</title><title>Carbon (New York)</title><description>In this study, a novel pre-pyrolysis treatment is developed to restrict the morphology collapse in asymmetric carbon molecular sieve (CMS) hollow fiber membranes. The technique is referred as V-treatment, due to the use of a sol–gel crosslinking reaction between an organic-alkoxy silane (vinyltrimethoxysilane) and moisture. The V-treatment technique enables restricting the microscale morphology collapse in asymmetric CMS membranes without having a chemical reaction with the polymer precursor material. The effect of V-treatment is reported on two different polyimide precursors: Matrimid® and 6FDA:BPDA-DAM. For both the CMS V-treated Matrimid® and 6FDA:BPDA-DAM hollow fibers, a significant reduction up to 5–6-fold in apparent membrane skin thickness is observed compared to the CMS from untreated precursors. This improvement translates to an increase in gas separation productivities for both pure and mixed gas feeds in CMS V-treated Matrimid® and 6FDA:BPDA-DAM hollow fiber membranes. Moreover, several characterization analyses and transport results for V-treatment method using 100% VTMS are reported herein.</description><subject>Asymmetry</subject><subject>Carbon</subject><subject>Chemical synthesis methods</subject><subject>Chemistry</subject><subject>Collapse</subject><subject>Colloidal gels. Colloidal sols</subject><subject>Colloidal state and disperse state</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Fibers</subject><subject>General and physical chemistry</subject><subject>Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties</subject><subject>Materials science</subject><subject>Materials synthesis; materials processing</subject><subject>Membranes</subject><subject>Methods of nanofabrication</subject><subject>Molecular sieves</subject><subject>Morphology</subject><subject>Physics</subject><subject>Precursors</subject><subject>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</subject><issn>0008-6223</issn><issn>1873-3891</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9UEtLxDAQDqLguvoPPOQieGlN0jZNL4Is6wMWvOg5JOl0zZI2a9Iq--_NUvHoaZiZb-Z7IHRNSU4J5Xe73Kig_ZAzQsucVDkh4gQtqKiLrBANPUULkkYZZ6w4Rxcx7lJbCloukFwPWzsABDtscZx0HMNkxikA7n3Yf3jntwfsO6zioe9hDNbgmSvtHZjJqYCjhS_ACev8N-6shoB76HVQA8RLdNYpF-Hqty7R--P6bfWcbV6fXlYPm8yUNRsz3rVNVVGuuSKGQ9EWhnIQAKqpBRGm1W1tal1yXVLNKCNdoQUw3oJuOCnrYolu57_74D8niKPsbTTgXBLhpyhpxWvS8KYRCVrOUBN8jAE6uQ-2V-EgKZHHPOVOzh7lMU9JKpnCS2c3vwwqGuW6ZM_Y-HfLRMUKwo5K7mccJLtfFoKMxsJgoLUBzChbb_8n-gHV0o_C</recordid><startdate>20140901</startdate><enddate>20140901</enddate><creator>Bhuwania, Nitesh</creator><creator>Labreche, Ying</creator><creator>Achoundong, Carine S.K.</creator><creator>Baltazar, Jose</creator><creator>Burgess, Steven K.</creator><creator>Karwa, Shweta</creator><creator>Xu, Liren</creator><creator>Henderson, Clifford L.</creator><creator>Williams, P. 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| subjects | Asymmetry Carbon Chemical synthesis methods Chemistry Collapse Colloidal gels. Colloidal sols Colloidal state and disperse state Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Fibers General and physical chemistry Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties Materials science Materials synthesis materials processing Membranes Methods of nanofabrication Molecular sieves Morphology Physics Precursors Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) |
| title | Engineering substructure morphology of asymmetric carbon molecular sieve hollow fiber membranes |
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