Photo-assisted electrochemical oxidation of the urea onto TiO2-nanotubes modified by hematite
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The electrochemical oxidation of the urea in near neutral pH is investigated on platinum electrode. It is shown that oxidation reaction is practically inhibited up to the potentials of ∼0.9 V. The same reaction is investigated onto electrochemically obtained titanium dioxide nanotubes modified by hematite using facile, low-cost successive ion layer adsorption and reaction (SILAR) method. It is shown that such system possesses electrocatalytic activity at very low potentials, and activity can be further improved by the illumination of the electrode in the photo-assisted reaction. The possible application of the photoactive anode is considered in the application of urea based water electrolysis and urea based fuel cell.
Кључне речи:photoelectrochemical cells / water electrolysis / fuel cells / SILAR
Извор:Journal of Saudi Chemical Society, 2017, 21, 8, 990-997