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Bianca Lucas-Granados,Rita Sánchez-Tovar,Ramón M. Fernández-Domene,José García-Antón 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.70 No.-
In photoelectrochemistry, a suitable photoanode leading to high efficiencies in photocatalytic processesis a research challenge. Iron oxide nanostructures are promising materials to be used as photoanodes. Inthis work, different potentials during iron anodization were applied to study the properties of thesynthesized nanostructures. Results revealed that nanostructures anodized at 50 V presentedwell-defined nanotubular structures with open-tube tops, and they achieved values of photocurrentdensity of 0.11 mA cm 2 at 0 rpm and 0.14 mA cm 2 at 1000 rpm (measured at 0.50 VAg/AgCl),corresponding to the oxygen evolution reaction from water, i.e. 2H2O + 4 h+→ 4H+ + O2, demonstratingtheir good photoelectrochemical behavior.