Preparation of superporous poly(4-vinyl pyridine) cryogel and their templated metal nanoparticle composites for H2 production via hydrolysis reactions

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dc.authoridŞahiner, Nurettin/0000-0003-0120-530X
dc.contributor.authorŞahiner, Nurettin
dc.contributor.authorYildiz, Sema
dc.date.accessioned2025-01-27T20:38:41Z
dc.date.available2025-01-27T20:38:41Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe superporous cryogels of poly(4-vinylpyridine) p(4-VP) were prepared via free radical polymerization technique under cryogenic conditions (T = -18 degrees C). The prepared p(4-VP) cryogel was used as template for in situ metal nanoparticle preparation using Co, Ni and Cu by loading these ions into the p(4-VP) network from their corresponding metal (II) ion aqueous solutions, and then treating with a reducing agent, sodium borohydride (NaBH4). The prepared cryogel p(4-VP)-M (M: Co, Ni, Cu) composite catalysts were successfully used in hydrogen (H-2) generation from the hydrolysis of NaBH4 and ammonia borane (AB). The physicochemical structure and the thermal behavior of the prepared superporous p(4-VP) cryogels were analyzed via optical microscopy, FT-IR spectroscopy and thermogravimetric analyzer (TGA). The amounts of metal nanoparticles within superporous p(4-VP)-M cryogel composites were determined by atomic absorption spectroscopy (AAS) and TGA measurements. Multiple metal ion loading-reduction cycles were completed for superporous p(4-VP) cryogels to increase the amount of Co content. The activation energies for NaBH4 and AB hydrolysis catalyzed by superporous p(4-VP)-Co cryogel composites were calculated as 28.75 and 34.98 kJ/mol, respectively. (C) 2014 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey [113T042, 1101649]
dc.description.sponsorshipThis work is supported by the Scientific and Technological Research Council of Turkey (113T042) and (1101649).
dc.identifier.doi10.1016/j.fuproc.2014.05.025
dc.identifier.endpage331
dc.identifier.issn0378-3820
dc.identifier.issn1873-7188
dc.identifier.scopus2-s2.0-84902136726
dc.identifier.scopusqualityQ1
dc.identifier.startpage324
dc.identifier.urihttps://doi.org/10.1016/j.fuproc.2014.05.025
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23707
dc.identifier.volume126
dc.identifier.wosWOS:000340329600037
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofFuel Processing Technology
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectP(4-VP) cryogel
dc.subjectp(4-VP)-M cryogel composite
dc.subjectH-2 production
dc.subjectCryogenic hydrogel
dc.titlePreparation of superporous poly(4-vinyl pyridine) cryogel and their templated metal nanoparticle composites for H2 production via hydrolysis reactions
dc.typeArticle

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