Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 13, Issue 1, Pages 28-30Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.11.004
Keywords
Water splitting; Electrolysis; Photochemistry; Hydrogen energy
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Funding
- Australian Research Council (ARC)
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The search for an energy efficient means of utilizing sunlight to carry out solar-driven water splitting continues to be a subject of intense investigation. In a recent publication (Z. G. Yi et al., Nature Mater. 9(2010), 559-564), a simple Ag(3)PO(4) semiconductor material was shown to possess strong photo-oxidative properties under visible-light irradiation. Here we report a novel two-step approach that enables energy-efficient, solar-driven water splitting at room temperature in the presence of powdered silver orthophosphate. The approach proposed avoids the use of a low-efficiency, thin-film photo-electrode and turns the instability of the silver orthophosphate semiconductor material into an advantage. (C) 2010 Elsevier B.V. All rights reserved.
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