Fabrication variables affecting the structure and properties of supported carbon molecular sieve membranes for hydrogen separation

Handle URI:
http://hdl.handle.net/10754/598304
Title:
Fabrication variables affecting the structure and properties of supported carbon molecular sieve membranes for hydrogen separation
Authors:
Briceño, Kelly; Montané, Daniel; Garcia-Valls, Ricard; Iulianelli, Adolfo; Basile, Angelo
Abstract:
A high molecular weight polyimide (Matrimid) was used as a precursor for fabricating supported carbon molecular sieve membranes without crack formation at 550-700°C pyrolysis temperature. A one-step polymer (polyimide) coating method as precursor of carbon layer was used without needing a prior modification of a TiO 2 macroporous support. The following fabrication variables were optimized and studied to determine their effect on the carbon structure: polymeric solution concentration, solvent extraction, heating rate and pyrolysis temperature. Two techniques (Thermogravimetric analysis and Raman spectroscopy) were used to determine these effects on final carbon structure. Likewise, the effect of the support was also reported as an additional and important variable in the design of supported carbon membranes. Atomic force microscopy and differential scanning calorimetry quantified the degree of influence. Pure gas permeation tests were performed using CH 4, CO, CO 2 and H 2. The presence of a molecular sieving mechanism was confirmed after defects were plugged with PDMS solution at 12wt%. Gas selectivities higher than Knudsen theoretical values were reached with membranes obtained over 650°C, showing as best values 4.46, 4.70 and 10.62 for H 2/N 2, H 2/CO and H 2/CH 4 ratio, respectively. Permeance values were over 9.82×10 -9mol/(m 2Pas)during pure hydrogen permeation tests. © 2012 Elsevier B.V.
Citation:
Briceño K, Montané D, Garcia-Valls R, Iulianelli A, Basile A (2012) Fabrication variables affecting the structure and properties of supported carbon molecular sieve membranes for hydrogen separation. Journal of Membrane Science 415-416: 288–297. Available: http://dx.doi.org/10.1016/j.memsci.2012.05.015.
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
Issue Date:
Oct-2012
DOI:
10.1016/j.memsci.2012.05.015
Type:
Article
ISSN:
0376-7388
Sponsors:
The authors are indebted to the Spanish Government for financial support (project CTQ2008-02491, partially funded by the FEDER program of the European Union) and to the commission of European Communities Specific OpenTok ProjectMTKD-LT-2005-030040. Dr. S. Nunes from the Water Desalination and Reuse Center at the King Abdullah University of Science and Technology (KAUST), Kingdom of Saudi Arabia, is acknowledged for providing the Matrimid polymer. Dr. J. L. Toca from the Department of Naniobiotechnology BOKU-Vienna and Dr. A. Lederer from the Leibniz-Institute of Polymer Research Dresden are acknowledged for their assistance with the AFM and Light Scattering measurements, respectively. Special thanks to Dr. Marta Giamberini and Dr. Jose Antonio Reina from Rovira I Virgili University for their support on realization of experiments.
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Full metadata record

DC FieldValue Language
dc.contributor.authorBriceño, Kellyen
dc.contributor.authorMontané, Danielen
dc.contributor.authorGarcia-Valls, Ricarden
dc.contributor.authorIulianelli, Adolfoen
dc.contributor.authorBasile, Angeloen
dc.date.accessioned2016-02-25T13:18:21Zen
dc.date.available2016-02-25T13:18:21Zen
dc.date.issued2012-10en
dc.identifier.citationBriceño K, Montané D, Garcia-Valls R, Iulianelli A, Basile A (2012) Fabrication variables affecting the structure and properties of supported carbon molecular sieve membranes for hydrogen separation. Journal of Membrane Science 415-416: 288–297. Available: http://dx.doi.org/10.1016/j.memsci.2012.05.015.en
dc.identifier.issn0376-7388en
dc.identifier.doi10.1016/j.memsci.2012.05.015en
dc.identifier.urihttp://hdl.handle.net/10754/598304en
dc.description.abstractA high molecular weight polyimide (Matrimid) was used as a precursor for fabricating supported carbon molecular sieve membranes without crack formation at 550-700°C pyrolysis temperature. A one-step polymer (polyimide) coating method as precursor of carbon layer was used without needing a prior modification of a TiO 2 macroporous support. The following fabrication variables were optimized and studied to determine their effect on the carbon structure: polymeric solution concentration, solvent extraction, heating rate and pyrolysis temperature. Two techniques (Thermogravimetric analysis and Raman spectroscopy) were used to determine these effects on final carbon structure. Likewise, the effect of the support was also reported as an additional and important variable in the design of supported carbon membranes. Atomic force microscopy and differential scanning calorimetry quantified the degree of influence. Pure gas permeation tests were performed using CH 4, CO, CO 2 and H 2. The presence of a molecular sieving mechanism was confirmed after defects were plugged with PDMS solution at 12wt%. Gas selectivities higher than Knudsen theoretical values were reached with membranes obtained over 650°C, showing as best values 4.46, 4.70 and 10.62 for H 2/N 2, H 2/CO and H 2/CH 4 ratio, respectively. Permeance values were over 9.82×10 -9mol/(m 2Pas)during pure hydrogen permeation tests. © 2012 Elsevier B.V.en
dc.description.sponsorshipThe authors are indebted to the Spanish Government for financial support (project CTQ2008-02491, partially funded by the FEDER program of the European Union) and to the commission of European Communities Specific OpenTok ProjectMTKD-LT-2005-030040. Dr. S. Nunes from the Water Desalination and Reuse Center at the King Abdullah University of Science and Technology (KAUST), Kingdom of Saudi Arabia, is acknowledged for providing the Matrimid polymer. Dr. J. L. Toca from the Department of Naniobiotechnology BOKU-Vienna and Dr. A. Lederer from the Leibniz-Institute of Polymer Research Dresden are acknowledged for their assistance with the AFM and Light Scattering measurements, respectively. Special thanks to Dr. Marta Giamberini and Dr. Jose Antonio Reina from Rovira I Virgili University for their support on realization of experiments.en
dc.publisherElsevier BVen
dc.subjectCarbon supported membranesen
dc.subjectCeramic tubular supporten
dc.subjectFabrication variablesen
dc.subjectGas separationen
dc.subjectHydrogen separationen
dc.subjectMaterials for membrane reactorsen
dc.subjectMatrimid membranesen
dc.subjectPolyimide membranesen
dc.titleFabrication variables affecting the structure and properties of supported carbon molecular sieve membranes for hydrogen separationen
dc.typeArticleen
dc.identifier.journalJournal of Membrane Scienceen
dc.contributor.institutionUniversitat Rovira i Virgili, Tarragona, Spainen
dc.contributor.institutionCatalonia Institute for Energy Research IREC, Barcelona, Spainen
dc.contributor.institutionUniversita della Calabria, Cosenza, Italyen
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