Beyond the H2/CO2 upper bound: one-step crystallization and separation of nano-sized ZIF-11 by centrifugation and its application in mixed matrix membranes
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Campo DC | Valor | Idioma |
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dc.contributor | Materiales Carbonosos y Medio Ambiente | es |
dc.contributor.author | Sánchez-Laínez, Javier | - |
dc.contributor.author | Zornoza, Beatriz | - |
dc.contributor.author | Mayoral, Álvaro | - |
dc.contributor.author | Berenguer-Murcia, Ángel | - |
dc.contributor.author | Cazorla-Amorós, Diego | - |
dc.contributor.author | Téllez, Carlos | - |
dc.contributor.author | Coronas, Joaquín | - |
dc.contributor.other | Universidad de Alicante. Departamento de Química Inorgánica | es |
dc.contributor.other | Universidad de Alicante. Instituto Universitario de Materiales | es |
dc.date.accessioned | 2015-03-20T12:13:11Z | - |
dc.date.available | 2015-03-20T12:13:11Z | - |
dc.date.issued | 2015-02-17 | - |
dc.identifier.citation | Journal of Materials Chemistry A. 2015, 3: 6549-6556. doi:10.1039/C4TA06820C | es |
dc.identifier.issn | 2050-7488 (Print) | - |
dc.identifier.issn | 2050-7496 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/45959 | - |
dc.description.abstract | The synthesis of nano-sized ZIF-11 with an average size of 36 ± 6 nm is reported. This material has been named nano-zeolitic imidazolate framework-11 (nZIF-11). It has the same chemical composition and thermal stability and analogous H2 and CO2 adsorption properties to the conventional microcrystalline ZIF-11 (i.e. 1.9 ± 0.9 μm). nZIF-11 has been obtained following the centrifugation route, typically used for solid separation, as a fast new technique (pioneering for MOFs) for obtaining nanomaterials where the temperature, time and rotation speed can easily be controlled. Compared to the traditional synthesis consisting of stirring + separation, the reaction time was lowered from several hours to a few minutes when using this centrifugation synthesis technique. Employing the same reaction time (2, 5 or 10 min), micro-sized ZIF-11 was obtained using the traditional synthesis while nano-scale ZIF-11 was achieved only by using centrifugation synthesis. The small particle size obtained for nZIF-11 allowed the use of the wet MOF sample as a colloidal suspension stable in chloroform. This helped to prepare mixed matrix membranes (MMMs) by direct addition of the membrane polymer (polyimide Matrimid®) to the colloidal suspension, avoiding particle agglomeration resulting from drying. The MMMs were tested for H2/CO2 separation, improving the pure polymer membrane performance, with permeation values of 95.9 Barrer of H2 and a H2/CO2 separation selectivity of 4.4 at 35 °C. When measured at 200 °C, these values increased to 535 Barrer and 9.1. | es |
dc.description.sponsorship | Financial support from the Spanish MINECO (MAT2013-40566-R, CTQ2012-31762, and RyC-2009-03913), the Aragón Government and the ESF is gratefully acknowledged. In addition, research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007–2013) under grant agreement no. 608490, project M4CO2. Finally, the use of the Servicio General de Apoyo a la Investigación-SAI (Universidad de Zaragoza) is acknowledged. | es |
dc.language | eng | es |
dc.publisher | Royal Society of Chemistry | es |
dc.rights | © Royal Society of Chemistry 2015 | es |
dc.subject | Synthesis | es |
dc.subject | Nano-sized ZIF-11 | es |
dc.subject | Centrifugation | es |
dc.subject | Mixed matrix membranes | es |
dc.subject | H2/CO2 separation | es |
dc.subject.other | Química Inorgánica | es |
dc.title | Beyond the H2/CO2 upper bound: one-step crystallization and separation of nano-sized ZIF-11 by centrifugation and its application in mixed matrix membranes | es |
dc.type | info:eu-repo/semantics/article | es |
dc.peerreviewed | si | es |
dc.identifier.doi | 10.1039/C4TA06820C | - |
dc.relation.publisherversion | http://dx.doi.org/10.1039/C4TA06820C | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/608490 | es |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas |
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2015_Sanchez_etal_J-Mater-Chem-A_accepted.pdf | Accepted Manuscript (acceso abierto) | 2,06 MB | Adobe PDF | Abrir Vista previa |
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