Next-generation photocatalytic system: Ga2O3-modified Ga Nanoislands on graphene for H2 production

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dc.contributor.authorBartošík, Miroslavcs
dc.contributor.authorEdelmannová, Miroslava Filipcs
dc.contributor.authorMach, Jindřichcs
dc.contributor.authorKočí, Kamilacs
dc.coverage.issueJunecs
dc.coverage.volume191cs
dc.date.accessioned2025-06-16T13:56:01Z
dc.date.available2025-06-16T13:56:01Z
dc.date.issued2024-05-24cs
dc.description.abstractStudy investigates Ga2O3/Ga on Graphene/SiO2/Si, prepared via temperature-controlled growth of Ga, for photocatalytic hydrogen generation, marking the first exploration of this system for such purpose. Thin surface ultra-wide band gap Ga2O3 layer effectively photoemits electron-hole pairs under UVC and the metallic Ga cores enhance electric field separating charge carriers by formation of localized surface plasmon (LSP) resonances. These effects increase hydrogen yields. Computational analysis of LSP-induced electric field enhancement quantitatively supports proposed fundamental mechanism underlying sample's photoactivity. The most active photocatalyst (Ga-M) with medium-size Ga particles (radius 14 nm) exhibited ten thousand times higher activity per gram than commercial TiO2.en
dc.formattextcs
dc.format.extent1-8cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationApplied Catalysis O: Open. 2024, vol. 191, issue June, p. 1-8.en
dc.identifier.doi10.1016/j.apcato.2024.206944cs
dc.identifier.issn2950-6492cs
dc.identifier.orcid0000-0003-4706-9112cs
dc.identifier.orcid0000-0003-1896-0715cs
dc.identifier.other197232cs
dc.identifier.researcheridO-7144-2019cs
dc.identifier.researcheridE-1870-2012cs
dc.identifier.scopus55769747798cs
dc.identifier.urihttps://hdl.handle.net/11012/252554
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofApplied Catalysis O: Opencs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2950648424000300cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2950-6492/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectPhotocatalysisen
dc.subjectHydrogen generationen
dc.subjectGa materialen
dc.subjectWater splittingen
dc.titleNext-generation photocatalytic system: Ga2O3-modified Ga Nanoislands on graphene for H2 productionen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-197232en
sync.item.dbtypeVAVen
sync.item.insts2025.06.16 15:56:00en
sync.item.modts2025.06.16 15:33:07en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav fyzikálního inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Příprava a charakterizace nanostrukturcs
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Příprava a charakterizace nanostruktur
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