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An experimental study of micropore defects in MFI membranes
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.ORCID-id: 0000-0003-2459-7932
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.ORCID-id: 0000-0003-4582-0902
Vise andre og tillknytning
2014 (engelsk)Inngår i: Microporous and Mesoporous Materials, ISSN 1387-1811, E-ISSN 1873-3093, Vol. 186, s. 194-200Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In the present work, two ultra-thin MFI membranes, prepared using hydroxide and fluoride ions as mineralizing agents, respectively, were carefully examined by permporometry. The amount of micropore defects, as determined by permporometry, differed significantly between the two different membranes. For the first time, it was demonstrated that the micropore defects determined by permporometry were most likely open grain boundaries. The results were verified by direct observation of the open grain boundaries by a state-of-the-art XHR-scanning electron microscopy instrument. In addition, the permporometry data were also consistent with permeation data using 1,3,5-trimethylbenzene (TMB) as a probe molecule, separation data using an equimolar mixture of n-hexane and TMB, and nitrogen adsorption data.

sted, utgiver, år, opplag, sider
2014. Vol. 186, s. 194-200
HSV kategori
Forskningsprogram
Kemisk teknologi
Identifikatorer
URN: urn:nbn:se:ltu:diva-2863DOI: 10.1016/j.micromeso.2013.12.002ISI: 000330916600028Scopus ID: 2-s2.0-84891506365Lokal ID: 094405c9-34fe-4755-b382-0f52e2f83981OAI: oai:DiVA.org:ltu-2863DiVA, id: diva2:975717
Merknad
Validerad; 2014; 20131204 (dankor)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Korelskiy, DanilYe, PengchengZhou, HanMouzon, JohanneHedlund, Jonas

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