Control of zeolite local microenvironment by organofluorination engineering toward efficient c-C4F8/C3F8 separation

Control of zeolite local microenvironment by organofluorination engineering toward efficient c-C4F8/C3F8 separation | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Control of zeolite local microenvironment by organofluorination engineering toward efficient c -C 4 F 8 /C 3 F 8 separation Liang Chen, Rui Sun, Zicheng Wan, Yaqi Wu, Yaohan Fu, Yang Zhang, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8322391/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Ultrahigh-purity octafluoropropane (C 3 F 8 ) electronic specialty gas is of critical importance for advanced semiconductor and integrated circuit manufacturing. The removal of trace amounts of octafluorocyclobutane ( c -C 4 F 8 ) impurities from C 3 F 8 products remains a challenging endeavor due to their similar physiochemical properties. Herein, an organofluorination engineering strategy is reported to regulate the local microenvironment of zeolite Y for efficient c -C 4 F 8 /C 3 F 8 adsorptive separation. The organofluorinated zeolite Y adsorbents exhibit enhanced c -C 4 F 8 /C 3 F 8 separation efficiency compared to pristine zeolite, with remarkably greater uptakes of c -C 4 F 8 and lower uptakes of C 3 F 8 . Notably, sample ZnY-FU achieves an ultrahigh c -C 4 F 8 /C 3 F 8 selectivity of 1.7´10 10 at 1 bar and 25 °C. Multiple characterizations and theoretical calculations reveal that the local microenvironment of zeolite Y can be regulated with the fluorinated ligands located at FAU supercages close to the pore entrance. The introduction of fluorinated ligands mainly affects the thermodynamic adsorption behaviors of c -C 4 F 8 and C 3 F 8 on the adsorbents, resulting in highly efficient c -C 4 F 8 /C 3 F 8 separation. Dynamic breakthrough experiments further verify the c -C 4 F 8 /C 3 F 8 separation potentials with ultrahigh-purity C 3 F 8 (99.999%) obtained from c -C 4 F 8 /C 3 F 8 (5: 95, v/v) mixtures. Physical sciences/Materials science/Materials for energy and catalysis/Porous materials Physical sciences/Engineering/Chemical engineering Physical sciences/Chemistry/Chemical engineering Physical sciences/Chemistry/Inorganic chemistry/Chemical bonding c-C4F8/C3F8 separation fluorinated electronic specialty gases deep purification microenvironment zeolites Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SupplementaryInformation.docx Supplementary Information Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8322391","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":561862286,"identity":"b71b4016-ff0d-4386-8742-d7d572066cb5","order_by":0,"name":"Liang 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\u003c/strong\u003e\u003cem\u003e\u003cstrong\u003ec\u003c/strong\u003e\u003c/em\u003e\u003cstrong\u003e-C\u003c/strong\u003e\u003csub\u003e\u003cstrong\u003e4\u003c/strong\u003e\u003c/sub\u003e\u003cstrong\u003eF\u003c/strong\u003e\u003csub\u003e\u003cstrong\u003e8\u003c/strong\u003e\u003c/sub\u003e\u003cstrong\u003e/C\u003c/strong\u003e\u003csub\u003e\u003cstrong\u003e3\u003c/strong\u003e\u003c/sub\u003e\u003cstrong\u003eF\u003c/strong\u003e\u003csub\u003e\u003cstrong\u003e8\u003c/strong\u003e\u003c/sub\u003e\u003cstrong\u003e 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purification, microenvironment, zeolites","lastPublishedDoi":"10.21203/rs.3.rs-8322391/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8322391/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eUltrahigh-purity octafluoropropane (C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e) electronic specialty gas is of critical importance for advanced semiconductor and integrated circuit manufacturing. The removal of trace amounts of octafluorocyclobutane (\u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e) impurities from C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e products remains a challenging endeavor due to their similar physiochemical properties. Herein, an organofluorination engineering strategy is reported to regulate the local microenvironment of zeolite Y for efficient \u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e/C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e adsorptive separation. The organofluorinated zeolite Y adsorbents exhibit enhanced \u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e/C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8 \u003c/sub\u003eseparation efficiency compared to pristine zeolite, with remarkably greater uptakes of \u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8 \u003c/sub\u003eand lower uptakes of C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e. Notably, sample ZnY-FU achieves an ultrahigh \u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e/C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8 \u003c/sub\u003eselectivity of 1.7´10\u003csup\u003e10\u003c/sup\u003e at 1 bar and 25 °C. Multiple characterizations and theoretical calculations reveal that the local microenvironment of zeolite Y can be regulated with the fluorinated ligands located at FAU supercages close to the pore entrance. The introduction of fluorinated ligands mainly affects the thermodynamic adsorption behaviors of \u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e and C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e on the adsorbents, resulting in highly efficient \u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e/C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e separation. Dynamic breakthrough experiments further verify the \u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e/C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e separation potentials with ultrahigh-purity C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e (99.999%) obtained from \u003cem\u003ec\u003c/em\u003e-C\u003csub\u003e4\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e/C\u003csub\u003e3\u003c/sub\u003eF\u003csub\u003e8\u003c/sub\u003e (5: 95, v/v) mixtures.\u003c/p\u003e","manuscriptTitle":"Control of zeolite local microenvironment by organofluorination engineering toward efficient c-C4F8/C3F8 separation","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-12-18 09:45:32","doi":"10.21203/rs.3.rs-8322391/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"9abf58ec-0d63-45b6-b222-f95de6d30b9c","owner":[],"postedDate":"December 18th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":59874303,"name":"Physical sciences/Materials science/Materials for energy and catalysis/Porous materials"},{"id":59874304,"name":"Physical sciences/Engineering/Chemical engineering"},{"id":59874305,"name":"Physical sciences/Chemistry/Chemical engineering"},{"id":59874306,"name":"Physical sciences/Chemistry/Inorganic chemistry/Chemical bonding"}],"tags":[],"updatedAt":"2026-02-05T16:17:34+00:00","versionOfRecord":[],"versionCreatedAt":"2025-12-18 09:45:32","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8322391","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8322391","identity":"rs-8322391","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}