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Role of Platinum in Photoelectrochemical Studies Related to Solar Energy Harvesting
The electrochemical behaviour of platinum as a regenerator electrode during the photolysis of buffered aqueous solutions of ferrocyanide ([Fe(CN)6]4‐) as a source of hydrated electrons for hydrogen production was investigated. Optimum conditions for the
heterogeneous reduction of ferricyanide ([Fe(CN)6]3‐) in aqueous suspensions of semiconductor nanoparticles were determined, and hydrogen generation was explored in both homogeneous and heterogeneous aqueous systems. Experiments took place in a three-electrode
cell. The results indicated that the Pt gauze electrode gave adequate and reproducible photoelectrochemical performance during the photolysis of aqueous solutions of [Fe(CN)6]4‐ in 0.2 M pH 6 phosphate buffer. The results provide evidence for the important role
of Pt in photolysis studies that aim towards harvesting solar energy.
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Document Type: Research Article
Publication date: October 1, 2012
Johnson Matthey's journal of research on the platinum group metals and developments in their application in industry from 1957-2014. It has now been renamed the Johnson Matthey Technology Review
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