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Proceedings Paper

Solar hydrogen production on some water splitting photocatalysts
Author(s): Tsuyoshi Takata; Takashi Hisatomi; Kazunari Domen
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Paper 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.

Paper Details

Date Published: 26 September 2016
PDF: 7 pages
Proc. SPIE 9935, Solar Hydrogen and Nanotechnology XI, 99350O (26 September 2016); doi: 10.1117/12.2236434
Show Author Affiliations
Tsuyoshi Takata, The Univ. of Tokyo (Japan)
Takashi Hisatomi, The Univ. of Tokyo (Japan)
Kazunari Domen, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 9935:
Solar Hydrogen and Nanotechnology XI
Chung-Li Dong, Editor(s)

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