Photocatalytic cells

Photocatalytic cells. As in (1) above the reaction functions in the sense AG < 0 but the photons are used to overcome the activation energy barrier. These cells are used in converting substances. Probable applications are exemplified by the decomposition of acetic acid into ethane, carbon dioxide and hydrogen ... 

Finally, in photocatalytic cells, the reaction, which is kinetically hindered, is conducted in its thermodynamically spontaneous direction by applying an external potential bias to the cell, with the light providing the necessary activation energy for the process. Here, the location of the potentials of the Ox/Red and OxVRed couples is inverse to the case of photoelectrosynthetic cells. 

Photocatalytic Cells. Photocatalytic cells are defined as those cells wherein the overall cell reaction has a negative free energy change, but the reaction only proceeds at significant rates under the influence of light. 

Solar energy conversion into chemical fuels is one of the holy grails of the 21st century. Significant research efforts are currently underway toward understanding natural photosynthesis and artificial biomimetic systems. Photocatalytic cells absorb solar energy and use it to drive catalytic water oxidation at photoanodes ... 

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