Abstract
Photo-fuel-cells constitute an alternative means of solar energy conversion. A photo-fuel-cell is a photoelectrochemical cell, which produces electricity by photocatalytically degrading organic substances. Since photocatalysts are not selective towards the photodegradable substance, any organic material or a mixture of materials, including water-soluble wastes can play the role of the fuel. The photo-fuel-cell may be used to produce hydrogen by photoelectrocatalytic reforming of a fuel or by water splitting, however, this operation can be carried out only under bias. Production of electricity is an unbiased processes generating substantial electric power. More power can be generated by employing two-compartment cells, where the compartments are separated by an ion-transfer membrane. Some commercial products have been tried as ion-transfer membranes, however, this matter remains a technological challenge. The data presented in this work are based on a nanocrystalline titania photoanode sensitized in the Visible by quantum dot sensitizers.
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