Polymeric Benzothiadiazole, Benzooxadiazole, and Benzoselenadiazole Photocathodes for Photocatalytic Oxygen Reduction to Hydrogen Peroxide

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dc.contributor.authorGańczarczyk, Roman Mateuszcs
dc.contributor.authorRybakiewicz-Sekita, Renatacs
dc.contributor.authorGryszel, Maciejcs
dc.contributor.authorDrápala, Jakubcs
dc.contributor.authorZagórska, Malgorzatacs
dc.contributor.authorGlowacki, Eric Danielcs
dc.coverage.issue21cs
dc.coverage.volume10cs
dc.date.issued2023-07-01cs
dc.description.abstractVisible-light-driven semiconductor photoelectrodes are promising new devices for on-demand photocathodic generation of hydrogen peroxide. Herein, the fabrication of organic polymeric photocathodes employing poly(4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole) (pThBTD), and comparatively seven other related derivatives is reported. The monomer dithienobenzodithiazole can be directly polymerized on an electrode via two methods: electropolymerization or iodine-vapor-assisted polymerization. Both give polymers with wide visible light absorption and suitable stability for photoelectrodes. These methods yield different active layer morphologies, with electropolymerization yielding photocathodes with better performance. Critical issues affecting oxygen reduction photocurrents are evaluated, namely thickness, wettability, and pH. Photocathodic oxygen reduction currents, as well as photovoltages, are among the highest reported for an organic photoelectrocatalyst, and pThBTD films can stably produce H2O2 with high faradaic yield over at least 8 h. This work shows that single-component organic semiconductor devices can be highly competitive versus more complex heterostructures and that such low-bandgap organic polymers can afford remarkable stability.en
dc.formattextcs
dc.format.extent12cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationAdvanced Materials Interfaces. 2023, vol. 10, issue 21, 12 p.en
dc.identifier.doi10.1002/admi.202300270cs
dc.identifier.issn2196-7350cs
dc.identifier.orcid0000-0002-0280-8017cs
dc.identifier.other184911cs
dc.identifier.urihttp://hdl.handle.net/11012/244983
dc.language.isoencs
dc.publisherWileycs
dc.relation.ispartofAdvanced Materials Interfacescs
dc.relation.urihttps://onlinelibrary.wiley.com/doi/10.1002/admi.202300270cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2196-7350/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectbenzooxadiazoleen
dc.subjectbenzoselenadiazoleen
dc.subjectbenzothiadiazoleen
dc.subjectelectroactive polymersen
dc.subjecthydrogen peroxide generationen
dc.subjectphotocathodeen
dc.titlePolymeric Benzothiadiazole, Benzooxadiazole, and Benzoselenadiazole Photocathodes for Photocatalytic Oxygen Reduction to Hydrogen Peroxideen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-184911en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:49:44en
sync.item.modts2025.01.17 15:24:31en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Bioelektronické materiály a systémycs
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