26 September 2016 Solar hydrogen production on some water splitting photocatalysts
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Abstract
Photocatalytic overall water splitting into H2 and O2 is expected to be a promising method for the efficient utilization of solar energy. The design of optimal photocatalyst structures is a key to efficient overall water splitting, and the development of photocatalysts which can efficiently convert large portion of visible light spectrum has been required. Recently, a series of complex perovskite type transition metal oxynitrides, LaMgxT 1-xO1+3xN2-3x, was developed as photocatalysts for direct water splitting operable at wide wavelength of visible light. In addition two-step excitation water splitting via a novel photocatalytic device termed as photocatalyst sheet was developed. This consists of two types of semiconductors (hydrogen evolution photocatalyst and oxygen evolution photocatalyst) particles embedded in a conductive layer, and showed high efficiency for overall water splitting. These recent advances in photocatalytic water splitting were introduced.
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Tsuyoshi Takata, Takashi Hisatomi, Kazunari Domen, "Solar hydrogen production on some water splitting photocatalysts", Proc. SPIE 9935, Solar Hydrogen and Nanotechnology XI, 99350O (26 September 2016); doi: 10.1117/12.2236434; https://doi.org/10.1117/12.2236434
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