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

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidad de Concepción-
Autor(es): dc.contributorUniversidad Autónoma de Chile-
Autor(es): dc.creatorPraxedes, Fabiano R.-
Autor(es): dc.creatorNobre, Marcos A.L.-
Autor(es): dc.creatorOlean-Oliveira, André-
Autor(es): dc.creatorPortugal, Miquéias L.-
Autor(es): dc.creatorPoon, Po S.-
Autor(es): dc.creatorTeixeira, Marcos F.S.-
Autor(es): dc.creatorLanfredi, Silvania-
Autor(es): dc.creatorMatos, Juan-
Data de aceite: dc.date.accessioned2025-08-21T17:37:10Z-
Data de disponibilização: dc.date.available2025-08-21T17:37:10Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-06-05-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.apcata.2023.119171-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247148-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247148-
Descrição: dc.descriptionThe 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.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionUniversidade Estadual Paulista-
Descrição: dc.descriptionLaboratório Nacional de Nanotecnologia-
Descrição: dc.descriptionDepartment of Chemistry and Biochemistry São Paulo State University (Unesp) School of Technology and Sciences, SP-
Descrição: dc.descriptionSão Paulo State University (Unesp) Institute of Biosciences Humanities and Exact Sciences, SP-
Descrição: dc.descriptionDepartment of Physics São Paulo State University (Unesp) São Paulo State University (Unesp) School of Technology and Sciences, SP-
Descrição: dc.descriptionUnidad de Desarrollo Tecnológico (UDT) Universidad de Concepción, Barrio Universitario s/n-
Descrição: dc.descriptionInstituto de Ciencias Químicas Aplicadas Facultad de Ingeniería Universidad Autónoma de Chile-
Descrição: dc.descriptionDepartment of Chemistry and Biochemistry São Paulo State University (Unesp) School of Technology and Sciences, SP-
Descrição: dc.descriptionSão Paulo State University (Unesp) Institute of Biosciences Humanities and Exact Sciences, SP-
Descrição: dc.descriptionDepartment of Physics São Paulo State University (Unesp) São Paulo State University (Unesp) School of Technology and Sciences, SP-
Descrição: dc.descriptionLaboratório Nacional de Nanotecnologia: TEM-C1–20210387-
Idioma: dc.languageen-
Relação: dc.relationApplied Catalysis A: General-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAlkali niobate perovskite-
Palavras-chave: dc.subjectOxygen evolution reaction-
Palavras-chave: dc.subjectPhotoelectrocatalysis-
Palavras-chave: dc.subjectTungsten-doping-
Título: dc.titlePhotoelectrocatalytic oxygen evolution reaction on visible-light irradiated W-doped alkali niobate-based perovskite-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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