Water Photoelectrolysis Using Nanocrystalline Photoanodes

Various approaches are being pursued to circumvent the poor solar light response of photocorrosion-stable wide band gap semiconductors. For example, in an experiment carried out by Karn 

1 N NaOH electrolyte solutions, hydrogen evolution is seen exclusively at the Ti02 photoanode in the presence of a sacrificial electron donor, CH3OH, by the following reaction  

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