Kinetics of oxygen evolution at α-Fe 2 O 3 photoanodes: a study by photoelectrochemical impedance spectroscopy

KGU Wijayantha, S Saremi-Yarahmadi… - Physical chemistry …, 2011 - pubs.rsc.org
Photoelectrochemical Impedance Spectroscopy (PEIS) has been used to characterize the
kinetics of electron transfer and recombination taking place during oxygen evolution at
illuminated polycrystalline α-Fe2O3 electrodes prepared by aerosol-assisted chemical
vapour deposition from a ferrocene precursor. The PEIS results were analysed using a
phenomenological approach since the mechanism of the oxygen evolution reaction is not
known a priori. The results indicate that the photocurrent onset potential is strongly affected …

Kinetics of oxygen evolution at alpha-Fe2O3 photoanodes: a study by photoelectrochemical impedance spectroscopy

U Wijayantha-Kahagala-Gamage… - repository.lboro.ac.uk
Photoelectrochemical Impedance Spectroscopy (PEIS) has been used to characterize the
kinetics of electron transfer and recombination taking place during oxygen evolution at
illuminated polycrystalline α-Fe2O3 electrodes prepared by aerosol-assisted chemical
vapour deposition from a ferrocene precursor. The PEIS results were analysed using a
phenomenological approach since the mechanism of the oxygen evolution reaction is not
known a priori. The results indicate that the photocurrent onset potential is strongly affected …
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