Photoelectrocatalytic oxygen evolution reaction on visible-light irradiated W-doped alkali niobate-based perovskite

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dc.contributor.authorPraxedes, Fabiano R. [UNESP]
dc.contributor.authorNobre, Marcos A.L. [UNESP]
dc.contributor.authorOlean-Oliveira, André [UNESP]
dc.contributor.authorPortugal, Miquéias L. [UNESP]
dc.contributor.authorPoon, Po S.
dc.contributor.authorTeixeira, Marcos F.S. [UNESP]
dc.contributor.authorLanfredi, Silvania [UNESP]
dc.contributor.authorMatos, Juan
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidad de Concepción
dc.contributor.institutionUniversidad Autónoma de Chile
dc.date.accessioned2023-07-29T13:07:32Z
dc.date.available2023-07-29T13:07:32Z
dc.date.issued2023-06-05
dc.description.abstractThe photoelectrocatalytic oxygen evolution reaction was studied under visible-light irradiated W-doped niobate-based perovskites. Nanostructured K0.5Na0.5(WxNb1−x)O3 materials were prepared by ultrasonic spray pyrolysis as a function of 1 – 3 mol% W6+ cations within the host structure. A careful characterization of solids including morphology, structure, texture, optical, and electrochemical properties was performed. From the characterization analysis it can be concluded the materials are constituted by nanostructured mesoporous hollow spheres and the substitution of Nb by W leads to the distortion of NbO6 octahedra. The photoelectrocatalytic activity was correlated with the structural properties and electrochemical properties of materials. To the best of our knowledge, the present W-doped niobate-based perovskites showed the highest turnover frequency reported in the photoelectrocatalytic OER under similar overpotential conditions. Accordingly, this new class of perovskite-based crystalline materials opens a door for the scaling-up of catalytic and photocatalytic processes related to energy production.en
dc.description.affiliationDepartment of Chemistry and Biochemistry São Paulo State University (Unesp) School of Technology and Sciences, SP
dc.description.affiliationSão Paulo State University (Unesp) Institute of Biosciences Humanities and Exact Sciences, SP
dc.description.affiliationDepartment of Physics São Paulo State University (Unesp) São Paulo State University (Unesp) School of Technology and Sciences, SP
dc.description.affiliationUnidad de Desarrollo Tecnológico (UDT) Universidad de Concepción, Barrio Universitario s/n
dc.description.affiliationInstituto de Ciencias Químicas Aplicadas Facultad de Ingeniería Universidad Autónoma de Chile
dc.description.affiliationUnespDepartment of Chemistry and Biochemistry São Paulo State University (Unesp) School of Technology and Sciences, SP
dc.description.affiliationUnespSão Paulo State University (Unesp) Institute of Biosciences Humanities and Exact Sciences, SP
dc.description.affiliationUnespDepartment of Physics São Paulo State University (Unesp) São Paulo State University (Unesp) School of Technology and Sciences, SP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipUniversidade Estadual Paulista
dc.description.sponsorshipLaboratório Nacional de Nanotecnologia
dc.description.sponsorshipIdLaboratório Nacional de Nanotecnologia: TEM-C1–20210387
dc.identifierhttp://dx.doi.org/10.1016/j.apcata.2023.119171
dc.identifier.citationApplied Catalysis A: General, v. 659.
dc.identifier.doi10.1016/j.apcata.2023.119171
dc.identifier.issn0926-860X
dc.identifier.scopus2-s2.0-85152280437
dc.identifier.urihttp://hdl.handle.net/11449/247148
dc.language.isoeng
dc.relation.ispartofApplied Catalysis A: General
dc.sourceScopus
dc.subjectAlkali niobate perovskite
dc.subjectOxygen evolution reaction
dc.subjectPhotoelectrocatalysis
dc.subjectTungsten-doping
dc.titlePhotoelectrocatalytic oxygen evolution reaction on visible-light irradiated W-doped alkali niobate-based perovskiteen
dc.typeArtigo
unesp.author.orcid0000-0001-9917-6126[8]

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