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Reduction of carbon dioxide at copper(I) oxide photocathode activated and stabilized by over-coating with oligoaniline

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cris.lastimport.scopus2024-02-12T20:42:05Z
dc.abstract.enContrary to the poor performance of the pristine (bare) copper(I) oxide (electrodeposited) photocathode, the visible-light-illuminated photoelectrochemical reduction of carbon dioxide has been successfully performed using the oligoaniline-stabilized p-type Cu2O-semiconductor (deposited onto the transparent fluorine-doped conducting glass electrode). To avoid oxidative dissolution of the semiconducting oxide during electrodeposition (by potential cycling) of a thin organic film (oligoaniline, as demonstrated using Raman spectroscopy), the over-coating step has been done in the external methanol solution. It has been demonstrated using X-ray photoelectron spectroscopy that the semiconducting material exists as copper(I) oxide during photoelectrochemical diagnostic experiments. Thus the robust partially-polymerized aniline over-layer leads to stabilization of Cu2O against photocorrosion. Among important issues is the ability of CO2 to undergo adsorption (and activation toward reduction to CO) at both bare and oligoaniline-modified Cu2O. The proposed bi-layered photocathode has been demonstrated to produce predominantly such a simple organic fuel as methanol.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorFrik, Małgorzata
dc.contributor.authorRajeshwar, Krishnan
dc.contributor.authorSeta, Ewelina
dc.contributor.authorWadas, Anna
dc.contributor.authorRutkowska, Iwona
dc.contributor.authorKulesza, Paweł
dc.contributor.authorSzaniawska, Ewelina
dc.contributor.authorKrogul-Sobczak, Agnieszka
dc.date.accessioned2024-01-25T19:08:40Z
dc.date.available2024-01-25T19:08:40Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.volume265
dc.identifier.doi10.1016/J.ELECTACTA.2018.01.116
dc.identifier.issn0013-4686
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/118118
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofElectrochimica Acta
dc.relation.pages400-410
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.encopper(I) oxide
dc.subject.enOligoaniline film
dc.subject.enCarbon dioxide adsorption and reduction
dc.subject.enElectrocatalysis
dc.subject.enPhotoelectrochemistry
dc.titleReduction of carbon dioxide at copper(I) oxide photocathode activated and stabilized by over-coating with oligoaniline
dc.typeJournalArticle
dspace.entity.typePublication