| abstract |
A photoelectrochemical system for the cleavage of an electrolyte into hydrogen by light, the system comprising: a photoelectrochemical device that comprises first and second electrically connected cells, said first cell including a photoactive electrode that is operable when in contact with said electrolyte to absorb light and generate protons, said second cell being operable to absorb light to generate a voltage bias for driving the reduction of protons generated by said first cell to hydrogen, said hydrogen being evolved at a second electrode immersed in said electrolyte; and means for circulating electrolyte through the system. |