Macroporous cryogel metal nanoparticle composites for H2 generation from NaBH4 hydrolysis in seawater

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.contributor.authorŞahiner, Nurettin
dc.contributor.authorYıldız, Sema
dc.contributor.authorŞahiner, Mehtap
dc.contributor.authorIssa, Zuheir A.
dc.contributor.authorAl-Lohedan, Hamad
dc.date.accessioned2025-01-27T20:59:35Z
dc.date.available2025-01-27T20:59:35Z
dc.date.issued2015
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.descriptionEuropean Conference on Surface Science (ECOSS) -- AUG 31-SEP 05, 2014 -- Antalya, TURKEY
dc.description.abstractPoly( 2-hydroxy ethyl methacrylate) p(HEMA), poly( acrylic acid) p(AAc), poly(3-sulfopropyl methacrylate) p(SPM), and poly(4-vinylpyridine) p(4-VP) cryogels from various monomers containing functional groups such as COOH, SO3H, and OH, and) N monomer were synthesized under cryogenic conditions via free radical polymerization technique. The synthesized cryogels were used as templates for metal nanoparticle synthesis using Co and Ni, and the prepared composite cryogels were utilized in hydrogen (H-2) generation from the hydrolysis reaction of NaBH4. It was found that the hydrolysis reaction of NaBH4 in seawater is much faster than in DI water when using the p(SPM)-Co catalyst system. Parameters such as water and metal types for different cryogels, concentration of NaBH4, amount of metal catalyst, and temperature were investigated. The hydrogen generation rate (HGR) and turnover frequency (TOF) values were also investigated for temperature dependency. It was found that as the temperature increased from 30 to 70 degrees C, the HGR and TOF increased from 1288.0 +/- 61.2 (ml H-2) (g of metal min)(-1) and 3.1 +/- 0.1 mol H-2 (mol metal min)(-1) to 7707.8 +/- 179.4 (ml H-2) (g of metal min)(-1), and 16.1 +/- 0.4 mol H-2 (mol metal min)(-1), respectively. The activation energy, enthalpy, and entropy were 31.1 kJ (mol K)(-1), 27.7 kJ (mol K)(-1), and 196.4J (molK)(-1), respectively, for NaBH4 hydrolysis catalyzed in seawater by p(SPM)-Co composite system. (C) 2015 Elsevier B.V. All rights reserved.
dc.description.sponsorshipSurfactant Research Chair, Chemistry Department, College of Science, King Saud University; Scientific and Technological Research Council of Turkey [113T042]
dc.description.sponsorshipThis project is supported by Surfactant Research Chair, Chemistry Department, College of Science, King Saud University. In addition, the support from the Scientific and Technological Research Council of Turkey (113T042) is greatly appreciated.
dc.identifier.doi10.1016/j.apsusc.2015.04.183
dc.identifier.endpage396
dc.identifier.issn0169-4332
dc.identifier.issn1873-5584
dc.identifier.scopus2-s2.0-84944274631
dc.identifier.scopusqualityQ1
dc.identifier.startpage388
dc.identifier.urihttps://doi.org/10.1016/j.apsusc.2015.04.183
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26729
dc.identifier.volume354
dc.identifier.wosWOS:000363673500022
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofApplied Surface Science
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectFunctional hydrogel/cryogels
dc.subjectTemplate
dc.subjectMetal nanoparticle
dc.subjectH-2 generation
dc.subjectHydrolysis reaction
dc.subjectNaBH4 hydrolysis
dc.titleMacroporous cryogel metal nanoparticle composites for H2 generation from NaBH4 hydrolysis in seawater
dc.typeConference Object

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