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Solar-powered production of molecular hydrogen from water SCIE SCOPUS

Title
Solar-powered production of molecular hydrogen from water
Authors
Park, HVecitis, CDChoi, WWeres, OHoffmann, MR
Date Issued
2008-01-31
Publisher
AMER CHEMICAL SOC
Abstract
Electrochemical water splitting powered by conventional electricity or photovoltaic arrays produces molecular hydrogen at the cathode, while organic compound oxidation under mild conditions takes place at the anode in competition with the production of oxygen. An electrolytic cell, which is based on the coupling of bismuth-doped titanium dioxide anodes (BiOx-TiO2) With stainless steel (SS) cathodes, is characterized in terms of hydrogen production efficiency and organic compound degradation. In the solar-powered photovoltaic (PV)-electrochemical system, the production of molecular oxygen at the anode is suppressed by the simultaneous oxidation and mineralization of organic compounds dissolved in water. In addition, the anodic oxidation of organic substrates has a synergistic effect on hydrogen production at the cathode that results in a 53% increase in the energy efficiency for H-2 generation at circum-neutral PH in the presence of dilute electrolyte solutions.
Keywords
PHOTOCATALYST; PERFORMANCE; OXIDATION; SYSTEM
URI
https://oasis.postech.ac.kr/handle/2014.oak/22982
DOI
10.1021/JP710723P
ISSN
1932-7447
Article Type
Article
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, vol. 112, no. 4, page. 885 - 889, 2008-01-31
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최원용CHOI, WONYONG
Div of Environmental Science & Enginrg
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