Catalytic activity of amine functionalized titanium dioxide nanoparticles in methanolysis of sodium borohydride for hydrogen generation

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dc.authoridDemirci, Şahin / 0000-0001-7083-1481
dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.contributor.authorDemirci, Şahin
dc.contributor.authorSunol, Aydın K.
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T20:12:04Z
dc.date.available2025-01-27T20:12:04Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractTitanium dioxide (TiO2) nanoparticles, Anatase (A-TiO2), Rutile (R-TiO2), and Rutile-Anatase (RA-TiO2) mixture were modified chemically with ethylene-diamine, diethylene-tri-amine, tri-ethylene-tetra-amine, and polyethyleneimine (PEI) to functionalize their surface to catalyze sodium borohydride methanolysis to generate hydrogen. PEI modified TiO2 particles catalyzed the methanolysis reaction more effectively than amines with lesser number of amine groups for all the forms of modified TiO2 catalysts. The Hydrogen Generation Rate (HGR) values for A-TiO2, R-TiO2, and RA-TiO2 are 3121, 3525, and 2920 mL H-2/(g catalystXmin), respectively and are further increased by 25.6, 30.6, and 36.7%, respectively when protonated. The protonated catalyst, A-TiO2-PEI+, R-TiO2-PEI+, and RA-TiO2-PEI+, are effective at low temperatures, 253-313 K, with activation energies of 35.2, 36.3, and 36 kJ/mol for methanolysis, respectively. These catalysts retain over sixty percent of the original HGR at the end of fifth consecutive reuse. All the forms of the catalysts are completely regenerateable through hydrochloric acid treatment.
dc.identifier.doi10.1016/j.apcatb.2019.118242
dc.identifier.issn0926-3373
dc.identifier.issn1873-3883
dc.identifier.scopus2-s2.0-85072702674
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.apcatb.2019.118242
dc.identifier.urihttps://hdl.handle.net/20.500.12428/20835
dc.identifier.volume261
dc.identifier.wosWOS:000496897000011
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofApplied Catalysis B-Environmental
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectChemically modified titanium dioxide catalysts
dc.subjectHydrogen production
dc.subjectSodium borohydride
dc.subjectMethanolysis
dc.titleCatalytic activity of amine functionalized titanium dioxide nanoparticles in methanolysis of sodium borohydride for hydrogen generation
dc.typeArticle

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