6533b860fe1ef96bd12c3a88

RESEARCH PRODUCT

Iron oxide nanostructures for photoelectrochemical applications: Effect of applied potential during Fe anodization

Bianca Lucas-granadosRita Sánchez TovarRamón Manuel Fernández DomeneJose Garcia-anton

subject

NanostructureMaterials scienceNanostructureGeneral Chemical EngineeringPhotoelectrochemistryIron oxide02 engineering and technologyApplied potential010402 general chemistry01 natural sciencesINGENIERIA QUIMICAPhotoelectrochemistrychemistry.chemical_compoundIron oxidePhotocurrentNanoestructuresAnodizingOxygen evolution021001 nanoscience & nanotechnology0104 chemical sciencesElectroquímicachemistryChemical engineeringPhotocatalysisAnodizationPotential0210 nano-technology

description

[EN] In photoelectrochemistry, a suitable photoanode leading to high efficiencies in photocatalytic processes is a research challenge. Iron oxide nanostructures are promising materials to be used as photoanodes. In this work, different potentials during iron anodization were applied to study the properties of the synthesized nanostructures. Results revealed that nanostructures anodized at 50V presented well-defined nanotubular structures with open-tube tops, and they achieved values of photocurrent density of 0.11 mA cm(-2) at 0 rpm and 0.14 mA cm(-2) at 1000 rpm (measured at 0.50 V-Ag/Agcl), corresponding to the oxygen evolution reaction from water, i.e. 2H(2)O+4h(+)-> 4H(+)+O-2, demonstrating their good photoelectrochemical behavior.

yearjournalcountryeditionlanguage
2019-01-01Journal of Industrial and Engineering Chemistry
https://doi.org/10.1016/j.jiec.2018.10.020