Complete Photochemical Water Splitting Systems Sample Clauses

Complete Photochemical Water Splitting Systems. The only photochemical system, in which a complete water-splitting reaction is reported, is the work of Katakis et al. (1992, 1994). They used tris-[1-(4-methoxyphenyl)-2-phenyl-1,2-ethyleno-dithiolenic-S,S′]tungsten as the sensitizer and MV2+ as an electron relay. Remarkably with no other components, they report sustained yields of hydrogen and oxygen in a 2:1 molar ratio. The solution (acetone:water) had to be continuously purged with nitrogen, as the complex undergoes degradative photooxidation in the presence of oxygen. This is an S1 system, and so the reported energy storage efficiency of ~7% is highly suspect. No other groups have as yet attempted to repeat these experiments.
Sample 1
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