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Proceedings Paper

Status of research and development on photoelectrochemical hydrogen production in Korea
Author(s): Jong Won Kim; Jae Sung Lee; Jin-Ook Baeg
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Paper Abstract

Conversion of solar energy into hydrogen is one of the most promising renewable energy technologies. Photocatalytic production of hydrogen from water, H2S and organic wastes using semiconductors is one of the potential strategies for converting the sunlight energy into chemical energy. Korea government paid great attention to the hydrogen economy and launched the HERC (Hydrogen Energy R&D Center) for supporting the R&D topics on hydrogen related technologies. The key issue for realizing the commercial application of solar water splitting hydrogen production technique is to find an efficient, stable and low-cost photocatalyst. Our research groups have continuously investigated to find oxide and composite photocatalysts for photoelectrochemical cell with high efficiency using computational design and synthesis method. But, fundamental research on semiconductor doping for band gap shifting and surface chemistry modification is still required. Various reaction media containing sacrificial agents should be developed to match with high activity photocatalysts to further improve the system efficiency. Water containing organic/inorganic waste and sea water are particularly suggested in the consideration that all these water sources are the most available water on the earth to the final commercial application of photocatalytic water splitting technique.

Paper Details

Date Published: 24 August 2010
PDF: 9 pages
Proc. SPIE 7770, Solar Hydrogen and Nanotechnology V, 777014 (24 August 2010); doi: 10.1117/12.860991
Show Author Affiliations
Jong Won Kim, Hydrogen Energy R&D Ctr. (Korea, Republic of)
Jae Sung Lee, Pohang Univ. of Science and Technology (Korea, Republic of)
Jin-Ook Baeg, Korea Research Institute of Chemical Technology (Korea, Republic of)

Published in SPIE Proceedings Vol. 7770:
Solar Hydrogen and Nanotechnology V
Hicham Idriss; Heli Wang, Editor(s)

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