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    Transferring Knowledge of Electrocatalysis to Photocatalysis: Photocatalytic Water Splitting

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    Type
    Book Chapter
    Authors
    Takanabe, Kazuhiro cc
    KAUST Department
    Catalysis for Energy Conversion (CatEC)
    Chemical Science Program
    KAUST Catalysis Center (KCC)
    Physical Science and Engineering (PSE) Division
    Date
    2017-06-23
    Permanent link to this record
    http://hdl.handle.net/10754/625638
    
    Metadata
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    Abstract
    One of the most attractive features of photocatalytic reactions is the ability to achieve energetically uphill (photosynthetic) reactions. In many photocatalytic reactions, the reactions involve multielectron transfers with the adsorbed intermediates. In this case, photocatalysis is nothing but electrocatalysis initiated and driven by the electron potential shift caused by the photocatalyst (photon absorber). This condition is indeed true for photocatalysts for water splitting, which are also electrocatalysts because both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) require multiple electron transfers at the active surfaces. This chapter deals with the product-side in the six-gear concept. It shows the electrocatalytic performance when using an electrocatalyst on the surface. The chapter further shows the current-potential curve for an electrocatalytic process isolated from the photocatalyst process. For an electrocatalyst to achieve electrochemical reactions, the potential of the catalyst must be shifted at the interface of the semiconductor, providing electromotive force or overpotential for redox reactions.
    Citation
    Takanabe K (2017) Transferring Knowledge of Electrocatalysis to Photocatalysis: Photocatalytic Water Splitting. Nanotechnology in Catalysis: 891–906. Available: http://dx.doi.org/10.1002/9783527699827.ch33.
    Publisher
    Wiley
    Journal
    Nanotechnology in Catalysis
    DOI
    10.1002/9783527699827.ch33
    Additional Links
    http://onlinelibrary.wiley.com/doi/10.1002/9783527699827.ch33/summary
    ae974a485f413a2113503eed53cd6c53
    10.1002/9783527699827.ch33
    Scopus Count
    Collections
    Physical Science and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC); Book Chapters

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