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dc.contributor.authorZhou, Shuyuan
dc.contributor.authorZou, Xiaoqin
dc.contributor.authorSun, Fuxing
dc.contributor.authorRen, Hao
dc.contributor.authorLiu, Jia
dc.contributor.authorZhang, Feng
dc.contributor.authorZhao, Nian
dc.contributor.authorZhu, Guangshan
dc.date.accessioned2017-05-03T16:04:04Z
dc.date.available2017-05-03T16:04:04Z
dc.date.issued2013
dc.date.modified2014-02-28T03:11:19Z
dc.identifier.issn0360-3199
dc.identifier.doi10.1016/j.ijhydene.2013.02.074
dc.identifier.urihttp://hdl.handle.net/10072/53490
dc.description.abstractHydrogen provides reliable, sustainable, environmental and climatic friendly energy to meet world's energy requirement and it also has high energy density. Hydrogen is relevant to all of the energy sectors-transportation, buildings, utilities and industry. In all of these sectors, hydrogen-rich gas streams are needed. Thus, hydrogen-selective membrane technology with superior performances is highly demanded for separation and purification of hydrogen gas mixtures. In this study, novel [Al4(OH)2(OCH3)4(H2N-BDC)3] xH2O (CAU-1) MOF membranes with accessible pore size of 0.38 nm are evaluated for this goal of hydrogen purification. High-quality CAU-1 membranes have been successfully synthesized on a-Al2O3 hollow ceramic fibers (HCFs) by secondary growth assisted with the homogenously deposited CAU-1 nanocrystals with a size of 500 nm as seeds. The energy-dispersive X-ray spectroscopy study shows that the HCFs substrates play dual roles in the membrane preparation, namely aluminum source and as a support. The crystals in the membrane are intergrown together to form a continuous and crack-free layer with a thickness of 4 mm. The gas sorption ability of CAU-1 MOF materials is examined by gas adsorption measurement. The isosteric heats of adsorption with average values of 4.52 kJ/mol, 12.90 kJ/mol, 12.82 kJ/mol and 27.99 kJ/mol are observed for H2, N2, CH4, and CO2 respectively, indicating different interactions between CAU-1 framework and these gases. As-prepared HCF supported CAU-1 membranes are tested by single and binary gas permeation of H2/CO2, H2/N2 and H2/CH4 at different temperatures, feed pressures and testing time. The permeation results show preferential permeance of H2 over CO2, N2, and CH4 with high separation factors of 12.34, 10.33, and 10.42 for H2/CO2, H2/N2, H2/CH4, respectively. The temperature, pressure and test time dependent studies reveal that HCFs supported CAU-1 membranes possess high stability, resistance to cracking, temperature cycling, high reproducibility, these of which combined with high separation efficiency make this type of MOF membranes are promising for hydrogen recycling from industrial exhausts.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1525548 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom5338
dc.relation.ispartofpageto5347
dc.relation.ispartofissue13
dc.relation.ispartofjournalInternational Journal of Hydrogen Energy
dc.relation.ispartofvolume38
dc.rights.retentionY
dc.subject.fieldofresearchTransition Metal Chemistry
dc.subject.fieldofresearchChemical Sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode030207
dc.subject.fieldofresearchcode03
dc.subject.fieldofresearchcode09
dc.titleDevelopment of hydrogen-selective CAU-1 MOF membranes for hydrogen purification by ‘dual-metal-source’ approach
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2013 Professor T. Nejat Veziroglu. Published by Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2013
gro.hasfulltextFull Text
gro.griffith.authorZhu, Guangshan


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