A simple post modification method for novel porous superabsorbent p(acrylamide) hydrogels and their H2 production

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.contributor.authorSeven, Fahriye
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T20:45:25Z
dc.date.available2025-01-27T20:45:25Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractPoly(Acrylamide) (AAm) hydrogels were synthesized in bulk and reacted with NH2OH center dot HCl to develop a new functional group to confer high swelling, porosity and high metal ion binding abilities. The chemically-modified hydrogels, denoted as amidoximated poly(Acrylamide) (amid-p(AAm)) showed increased water swelling ability of up to 16-fold. The chemical modification induced structural changes were examined by FT-IR spectroscopy, water and pH swelling experiments, optical microscope images, titration studies, and even TG analysis. The amid-p(AAm) hydrogels were used as template for absorption of Co(II) and Ni(II) ions from their aqueous solutions and treated with aqueous NaBH4 for in situ metal nanoparticle preparation of the corresponding ions within the amid-p(AAm) matrices. The amid-p(AAm)-M (M:Co or Ni) composites were then used as catalyst in the hydrolysis of NaBH4 for H-2 generation, and their catalytic performances were investigated. Various parameters for the hydrolysis of NaBH4 such as functionality of polymer matrices, the types of metal nanoparticles, metal catalyst amounts within hydrogel matrices, and temperature were investigated. Considerably low activation energy in comparison to similar studies in the literature were calculated for NaBH4 hydrolysis by amid-p(AAm)Co metal composite systems: E-a=17.26 +/- 0.06.
dc.description.sponsorshipScientific and Technological Research Council of Turkey [110 T649]
dc.description.sponsorshipThis work is supported by the Scientific and Technological Research Council of Turkey (110 T649).
dc.identifier.doi10.1007/s10965-014-0627-9
dc.identifier.issn1022-9760
dc.identifier.issn1572-8935
dc.identifier.issue12
dc.identifier.scopus2-s2.0-84919903835
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s10965-014-0627-9
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24564
dc.identifier.volume21
dc.identifier.wosWOS:000351154700001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Polymer Research
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectModified p(AAm) hydrogels
dc.subjectHydrolysis of NaBH4
dc.subjectHydrogel-metal composite catalysts
dc.subjectAmidoximation reactions
dc.subjectH-2 production
dc.titleA simple post modification method for novel porous superabsorbent p(acrylamide) hydrogels and their H2 production
dc.typeArticle

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