Super-fast hydrogen generation via super porous Q-P(VI)-M cryogel catalyst systems from hydrolysis of NaBH4

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.contributor.authorŞahiner, Nurettin
dc.contributor.authorSeven, Fahriye
dc.contributor.authorAl-Lohedan, Hamad
dc.date.accessioned2025-01-27T20:45:25Z
dc.date.available2025-01-27T20:45:25Z
dc.date.issued2015
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractNovel poly(1-vinyl imidazole) p(VI) cryogels were synthesized via cryopolymerization technique where simultaneous polymerization and crosslinking occur around ice crystals under freezing conditions. The superporous p(VI) cryogels were modified with various alkyl bromides possessing different chain lengths such as 1.2-Dibromoethane (1,2-BE), 1.4-Dibromobutane (1,2-BB) and 1.6-Dibromohexane (1,6-BH), and used as template for in situ metal nanoparticle (M) synthesis (M: Co-0 or Ni-0). The prepared p(VI)-M cryogel composites were used in hydrogen (H-2) generation from the hydrolysis of sodium borohydride (NaBH4). Very high turnover frequency (TOP) and H-2 generation rate (HGR) values, of 34.4 (mol H-2) (mol catalyst min)(-1) and 14566.9 (mL H-2) (min)(-1) (g of M)(-1), respectively, were obtained at 70 degrees C for 3rd time Co (II) loaded and reduced 1.2-BE modified p(VI)-Co composite catalyst system compared with other imidazole-based catalyst systems reported in the literature. Moreover, modified p(VI) cryogels possess inherently magnetic behavior even after a single Co(II) loading-reduction step. Due to their superior properties, such as being recoverable via external applied magnetic field, fast HGR, and reusability, 1.2-BE-p(VI)-Co metal composites were found to be a highly attractive catalyst system for catalytic hydrolysis of NaBH4. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
dc.description.sponsorshipKing Saud University, Deanship of Scientific Research, Research Chair; Scientific and Technological Research Council of Turkey [113T042]
dc.description.sponsorshipThe project was supported by King Saud University, Deanship of Scientific Research, Research Chair, and by the Scientific and Technological Research Council of Turkey (113T042).
dc.identifier.doi10.1016/j.ijhydene.2015.02.049
dc.identifier.endpage4616
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue13
dc.identifier.scopus2-s2.0-84938262668
dc.identifier.scopusqualityQ1
dc.identifier.startpage4605
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2015.02.049
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24562
dc.identifier.volume40
dc.identifier.wosWOS:000351785300021
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectSuper porous p(VI) cryogel/hydrogels
dc.subjectH-2 generation
dc.subjectNaBH4 hydrolysis
dc.subjectQuaternized-p(VI) cryogel/hydrogel composites
dc.titleSuper-fast hydrogen generation via super porous Q-P(VI)-M cryogel catalyst systems from hydrolysis of NaBH4
dc.typeArticle

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