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    Efficient Visible-Light Driven Photothermal Conversion of CO 2 to Methane by Nickel Nanoparticles Supported on Barium Titanate

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    Name:
    Mateo et al_revised.pdf
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    638.7Kb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2021-12-04
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    Type
    Article
    Authors
    Mateo, Diego
    Morlanes, Natalia Sanchez cc
    Maity, Partha
    Shterk, Genrikh cc
    Mohammed, Omar F. cc
    Gascon, Jorge cc
    KAUST Department
    KAUST Catalysis Center (KCC)
    Physical Science and Engineering (PSE) Division
    KAUST Solar Center (KSC)
    Chemical Science
    Chemical Science Program
    Chemical Engineering Program
    Date
    2020-12-04
    Embargo End Date
    2021-12-04
    Submitted Date
    2020-09-28
    Permanent link to this record
    http://hdl.handle.net/10754/666278
    
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    Abstract
    Solar-driven methanation represents a potentially cost-efficient and environmentally friendly route for the direct hydrogenation of CO2. Recently, photothermal catalysis, which involves the combination of both photochemical and thermochemical pathways, has emerged as a promising strategy for the production of solar fuels. For a photothermal catalyst to efficiently convert CO2 under illumination, in the absence of external heating, effective light harvesting, an excellent photothermal conversion and efficient active sites are required. Here, a new composite catalyst consisting of Ni nanoparticles supported on barium titanate that, under optimal reaction conditions, is able to hydrogenate CO2 to CH4 at nearly 100% selectivity with production rates as high as 103.7 mmol g–1 h–1 under both UV–visible and visible irradiation (production rate: 40.3 mmol g−1 h–1) is reported. Mechanistic studies suggest that reaction mostly proceeds through a nonthermal hot-electron-driven pathway, with a smaller thermal contribution.
    Citation
    Mateo, D., Morlanes, N., Maity, P., Shterk, G., Mohammed, O. F., & Gascon, J. (2020). Efficient Visible-Light Driven Photothermal Conversion of CO 2 to Methane by Nickel Nanoparticles Supported on Barium Titanate. Advanced Functional Materials, 2008244. doi:10.1002/adfm.202008244
    Sponsors
    Funding for this work was provided by King Abdullah University of Science and Technology (KAUST).
    Publisher
    Wiley
    Journal
    Advanced Functional Materials
    DOI
    10.1002/adfm.202008244
    10.1002/adfm.202170053
    Additional Links
    https://onlinelibrary.wiley.com/doi/10.1002/adfm.202008244
    ae974a485f413a2113503eed53cd6c53
    10.1002/adfm.202008244
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Science Program; Chemical Engineering Program; KAUST Catalysis Center (KCC); KAUST Solar Center (KSC)

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