Growth of Uniformly Oriented Silica MFI and BEA Zeolite Films on Substrates
Applications of zeolite films benefit from alignment of the integrated channels, but methods for film growth have nearly always introduced orientational randomization in the direction normal to the substrate. We now report facile methods to grow silicalite-1 films and pure silica beta zeolite films...
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Veröffentlicht in: | Science (American Association for the Advancement of Science) 2011-12, Vol.334 (6062), p.1533-1538 |
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creator | Pham, Tung Cao Thanh Kim, Hyun Sung Yoon, Kyung Byung |
description | Applications of zeolite films benefit from alignment of the integrated channels, but methods for film growth have nearly always introduced orientational randomization in the direction normal to the substrate. We now report facile methods to grow silicalite-1 films and pure silica beta zeolite films on substrates with straight or sinusoidal channels positioned uniformly upright at a thickness of up to 8 micrometers. Precise gel compositions and processing temperatures are critical to promote secondary growth on pre-formed oriented crystal monolayers while suppressing self-crystallization in the bulk medium. Preliminary results highlight the potential of these uniformly oriented films in the nonlinear optical response and separation of xylene isomers. |
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We now report facile methods to grow silicalite-1 films and pure silica beta zeolite films on substrates with straight or sinusoidal channels positioned uniformly upright at a thickness of up to 8 micrometers. Precise gel compositions and processing temperatures are critical to promote secondary growth on pre-formed oriented crystal monolayers while suppressing self-crystallization in the bulk medium. Preliminary results highlight the potential of these uniformly oriented films in the nonlinear optical response and separation of xylene isomers.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.1212472</identifier><identifier>PMID: 22174247</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>Washington, DC: American Association for the Advancement of Science</publisher><subject>Beta ; Channels ; Chemistry ; Colloidal gels. 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We now report facile methods to grow silicalite-1 films and pure silica beta zeolite films on substrates with straight or sinusoidal channels positioned uniformly upright at a thickness of up to 8 micrometers. Precise gel compositions and processing temperatures are critical to promote secondary growth on pre-formed oriented crystal monolayers while suppressing self-crystallization in the bulk medium. Preliminary results highlight the potential of these uniformly oriented films in the nonlinear optical response and separation of xylene isomers.</description><subject>Beta</subject><subject>Channels</subject><subject>Chemistry</subject><subject>Colloidal gels. Colloidal sols</subject><subject>Colloidal state and disperse state</subject><subject>Crack initiation</subject><subject>Crystals</subject><subject>Dyes</subject><subject>Exact sciences and technology</subject><subject>Film growth</subject><subject>Gels</subject><subject>General and physical chemistry</subject><subject>Glass</subject><subject>Ion-exchange</subject><subject>Isomers</subject><subject>Material films</subject><subject>Materials science</subject><subject>Membranes</subject><subject>Porosity</subject><subject>Randomization</subject><subject>Retarding</subject><subject>Roasting</subject><subject>Silicon dioxide</subject><subject>Substrates</subject><subject>Surface physical chemistry</subject><subject>X ray diffraction</subject><subject>X ray film</subject><subject>Zeolites</subject><subject>Zeolites: preparations and properties</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp90UtLxDAUBeAgio6PtSslCKKbam7SNpPlKI6Kigt146akeWCGttGkRfz3RqYquHCVC_nugctBaBfICQAtT6NyplPmBCjQnNMVNAEiikxQwlbRhBBWZlPCiw20GeOCkPQn2DraoBR4nhYm6OYy-Pf-BXuLnzpnfWibD3wfUmpvNH5wjVMS382vsew0PruY4WfjG9cbPHdNG7Hv8MNQxz7I3sRttGZlE83O-G6hp_nF4_lVdnt_eX0-u81UAdBnVJua0pJoIbQtmQZdpNlyxYm1OeG0TAOVsq5NLdKVhPG6EIpZAQpyXbAtdLTMfQ3-bTCxr1oXlWka2Rk_xCotiVyUJUny-F8JJYecTymwRA_-0IUfQpfu-MqDaSI0odMlUsHHGIytXoNrZfiogFRfhVRjIdVYSNrYH2OHujX6x383kMDhCGRUsrFBdsrFX1cwYIKI5PaWbhF7H37-c2AFTAVnnyuJm5E</recordid><startdate>20111216</startdate><enddate>20111216</enddate><creator>Pham, Tung Cao Thanh</creator><creator>Kim, Hyun Sung</creator><creator>Yoon, Kyung Byung</creator><general>American Association for the Advancement of Science</general><general>The American Association for the Advancement of Science</general><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SN</scope><scope>7SP</scope><scope>7SR</scope><scope>7SS</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7TK</scope><scope>7TM</scope><scope>7U5</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>20111216</creationdate><title>Growth of Uniformly Oriented Silica MFI and BEA Zeolite Films on Substrates</title><author>Pham, Tung Cao Thanh ; Kim, Hyun Sung ; Yoon, Kyung Byung</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c511t-2deb2260d99df63d1d50d9f7c70ff4072670f2aabbeb9112037b59c3f91c14d53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Beta</topic><topic>Channels</topic><topic>Chemistry</topic><topic>Colloidal gels. 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subjects | Beta Channels Chemistry Colloidal gels. Colloidal sols Colloidal state and disperse state Crack initiation Crystals Dyes Exact sciences and technology Film growth Gels General and physical chemistry Glass Ion-exchange Isomers Material films Materials science Membranes Porosity Randomization Retarding Roasting Silicon dioxide Substrates Surface physical chemistry X ray diffraction X ray film Zeolites Zeolites: preparations and properties |
title | Growth of Uniformly Oriented Silica MFI and BEA Zeolite Films on Substrates |
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