Articles producció científica> Química Física i Inorgànica

Complexed Semiconductor Cores Activate Hexaniobate Ligands as Nucleophilic Sites for Solar-Light Reduction of CO2 by Water

  • Identification data

    Identifier: imarina:9282479
  • Authors:

    Zhang G
    Wang F
    Tubul T
    Baranov M
    Leffler N
    Neyman A
    Poblet JM
    Weinstock IA
  • Others:

    Author, as appears in the article.: Zhang G; Wang F; Tubul T; Baranov M; Leffler N; Neyman A; Poblet JM; Weinstock IA
    Department: Química Física i Inorgànica
    URV's Author/s: Poblet Rius, Josep Maria / Wang, Fei
    Keywords: Photocatalysis Oxide nanoparticles Nickel oxide Molecular complex Hexaniobate anion Co2 reduction Co reduction 2 temperature rhodium photoreduction mechanism photocatalytic properties photocatalysis oxidation niobate nio nickel oxide molecular complex mno metal-oxide hexaniobate anion
    Abstract: Although pure and functionalized solid-state polyniobates such as layered perovskites and niobate nanosheets are photocatalysts for renewable-energy processes, analogous reactions by molecular polyoxoniobate cluster-anions are nearly absent from the literature. We now report that under simulated solar light, hexaniobate cluster-anion encapsulated 30-NiII-ion "fragments" of surface-protonated cubic-phase-like NiO cores activate the hexaniobate ligands towards CO2 reduction by water. Photoexcitation of the NiO cores promotes charge-transfer reduction of NbV to NbIV, increasing electron density at bridging oxo atoms of Nb-m-O-Nb linkages that bind and convert CO2 to CO. Photogenerated NiO "holes" simultaneously oxidize water to dioxygen. The findings point to molecular complexation of suitable semiconductor "fragments" as a general method for utilizing electron-dense polyoxoniobate anions as nucleophilic photocatalysts for solar-light driven activation and reduction of small molecules.© 2022 Wiley-VCH GmbH.
    Thematic Areas: Química Medicina ii Medicina i Materiais Interdisciplinar General medicine General chemistry Farmacia Engenharias ii Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemistry Catalysis Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: fei.wang@urv.cat josepmaria.poblet@urv.cat
    Author identifier: 0000-0001-5106-5793 0000-0002-4533-0623
    Record's date: 2024-07-20
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://onlinelibrary.wiley.com/doi/full/10.1002/anie.202213162
    Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Angewandte Chemie (International Ed. Print). 61 (49): e202213162-
    APA: Zhang G; Wang F; Tubul T; Baranov M; Leffler N; Neyman A; Poblet JM; Weinstock IA (2022). Complexed Semiconductor Cores Activate Hexaniobate Ligands as Nucleophilic Sites for Solar-Light Reduction of CO2 by Water. Angewandte Chemie (International Ed. Print), 61(49), e202213162-. DOI: 10.1002/anie.202213162
    Article's DOI: 10.1002/anie.202213162
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications
  • Keywords:

    Catalysis,Chemistry,Chemistry (Miscellaneous),Chemistry, Multidisciplinary
    Photocatalysis
    Oxide nanoparticles
    Nickel oxide
    Molecular complex
    Hexaniobate anion
    Co2 reduction
    Co reduction 2
    temperature
    rhodium
    photoreduction mechanism
    photocatalytic properties
    photocatalysis
    oxidation
    niobate
    nio
    nickel oxide
    molecular complex
    mno
    metal-oxide
    hexaniobate anion
    Química
    Medicina ii
    Medicina i
    Materiais
    Interdisciplinar
    General medicine
    General chemistry
    Farmacia
    Engenharias ii
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Chemistry, multidisciplinary
    Chemistry (miscellaneous)
    Chemistry (all)
    Chemistry
    Catalysis
    Astronomia / física
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