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Photo-enhanced catalytic hydrogen production from ammonia borane dehydrogenation over cobalt doped n-type semiconductors

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dc.contributor.authorFiliz, Bilge Coskuner
dc.contributor.authorFigen, Aysel Kanturk
dc.date.accessioned2026-06-27T14:52:40Z
dc.date.issued2023
dc.description.abstractAimed at achieving the photo-enhanced dehydrogenation of ammonia borane (NH3BH3) in aqueous solutions, p-type cobalt (Co) doped n-type semiconductors (TiO2, WO3 and TiO2WO3) based heterojunction structures were proposed for hydrogen production. In the present study, the Co doped n-type semiconductors such as titanium dioxide (TiO2) and tungsten oxide (WO3) were synthesized by hydrothermal synthesis to obtain heterojunction structure and characterized by XRD, SEM/EDS, TEM, FT-IR and UV-Vis techniques. The photo-enhanced catalytic hydrogen production from NH3BH3 dehydrogenation over Co doped n-type semiconductors were tested under light-irradiation (UV-light and day-light) in presence of organic and inorganic scavengers. The experimental results showed that Co @TiO2-WO3 heterojunction structure improved hydrogen production almost three times in terms of TOF values (821 h-1) compared to Co@TiO2 (292 h-1) due to photoelectrons and hole pairs increases activity. The pseudo first order kinetics based on LangmuirHinshelwood (L-H) kinetic model fitting revealed that apparent adsorption constanten
dc.description.urihttps://doi.org/10.1016/j.ijhydene.2022.12.176
dc.identifier.doi10.1016/j.ijhydene.2022.12.176
dc.identifier.eissn1879-3487
dc.identifier.endpage22966
dc.identifier.issn0360-3199
dc.identifier.issue60
dc.identifier.startpage22954
dc.identifier.urihttps://hdl.handle.net/20.500.14981/65732
dc.identifier.volume48
dc.identifier.wos001028093800001
dc.language.isoeng
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartofINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
dc.subjectUV-Vis
dc.subjectPhoto-catalytic
dc.subjectTiO 2
dc.subjectHydrogen
dc.subjectHeterojunction
dc.subjectWO3
dc.subjectPHOTOCATALYTIC HYDROLYSIS
dc.subjectEFFICIENT CATALYSTS
dc.subjectH-2 EVOLUTION
dc.subjectNANOPARTICLES
dc.subjectNANOFIBERS
dc.subjectNANOWIRES
dc.subjectNANORODS
dc.subjectANATASE
dc.subjectChemistry
dc.subjectElectrochemistry
dc.subjectEnergy & Fuels
dc.titlePhoto-enhanced catalytic hydrogen production from ammonia borane dehydrogenation over cobalt doped n-type semiconductors
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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