An alternative to metal catalysts: Poly(4-vinyl pyridine]-based polymeric ionic liquid catalyst for H2 generation from hydrolysis and methanolysis of NaBH4

dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.authoridYaşar, Alper O. / 0000-0002-1192-9726
dc.contributor.authorŞahiner, Nurettin
dc.contributor.authorYaşar, Alper O.
dc.contributor.authorAktaş, Nahit
dc.date.accessioned2025-01-27T20:38:41Z
dc.date.available2025-01-27T20:38:41Z
dc.date.issued2016
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractMonodispersed p(4-VP) (poly(4-vinyl pyridine)) polymeric particles were synthesized via self-emulsion polymerization and modified with 1,2-dibromobutane 1,4-dibromobutane and 1,6-dibromobutane, to obtain polymeric ionic liquid (PIL) particles of poly(4-vinyl pyridine)-dibromoethane (p(4-VP)C-++(2)), poly(4-vinyl pyridine)-dibromobuthane (p(4-VP)C-++(4)), and poly(4-vinyl pyridine)-dibromohexane (p(4-VP)C-++(6)) particles. Highly mono dispersed p(4-VP), p(4-VP)C-++(2), p(4-VP)C-++(4) and p(4-VP)C-++(6) particles were obtained with the sizes of 335 +/- 10, 451 +/- 17, 432 +/- 13 and 443 +/- 24 nm, and the zeta potential values of 6.3 +/- 0.6, 31.2 +/- 2.1, 33.3 +/- 1.0 and 35.5 +/- 1.1 mV. PIL-metal composites of p(4-VP)C-++(6)-Co p(4-VP)C-++(6)-Ni and p(4-VP)C-++(6)-Fe particles were prepared by reducing CoCl2, NiCl2 and FeC13 metal salts loaded into p(4-VP)C-++(6) microgels and then reducing with NaBH4. The prepared PIL-metal composites and PIL particles were used as catalysts in H-2 generation from the hydrolysis and methanolysis of NaBH4. It was found that the prepared PIL-metal composites (e.g., p(4-VP)C-++(6)-Co) showed better catalytic performances than PIL particles (e.g., p(4-VP)C-++(6)) for the hydrolysis reaction of NaBH4 whereas, PIL catalytic performances were much better than PIL-metal composites for the methanolysis of NaBH4. Various parameters affecting the hydrolysis and methanolysis reactions of NaBH4 such as the types of PIL/PIL-metal particle, the amount of PIL particles, the amount of NaBH4 and temperature were investigated. A very high hydrogen generation rate (HGR) value for the methanolysis reaction of 500 mM NaBH4 catalyzed by 50 mg p(4-VP)C-++(6) at 25 degrees C was calculated as 9125 +/- 177 mL H-2 (g of catalyst min)(-1). Furthermore, very low activation energy (Ea), 13.78 +/- 0.23 kJ morl was calculated for the methanolysis of NaBH4 catalyzed by p(4-VP)C-++(6) at temperatures in the range of 0-40 degrees C. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey [TUBITAK-115M021]
dc.description.sponsorshipThe authors gratefully acknowledge the financial support provided by the Scientific and Technological Research Council of Turkey (TUBITAK-115M021).
dc.identifier.doi10.1016/j.ijhydene.2016.08.182
dc.identifier.endpage20572
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue45
dc.identifier.scopus2-s2.0-84994135547
dc.identifier.scopusqualityQ1
dc.identifier.startpage20562
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2016.08.182
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23709
dc.identifier.volume41
dc.identifier.wosWOS:000387522900015
dc.identifier.wosqualityQ1
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.subjectMicrogel/nanogel ionic liquids
dc.subjectPolymeric ionic liquid (PIL) catalyst
dc.subjectPIL composites
dc.subjectMetal free catalyst
dc.subjectH-2 production
dc.subjectHydrolysis/methanolysis of NaBH4
dc.titleAn alternative to metal catalysts: Poly(4-vinyl pyridine]-based polymeric ionic liquid catalyst for H2 generation from hydrolysis and methanolysis of NaBH4
dc.typeArticle

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