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- W2086584726 abstract "Photoelectrochemical response of electrodeposited hematite (a-Fe2O3) thin films, whose surface has been modified by a catalytic cobalt layer, has been studied. Structural and morphological characteristics of the resulting nanostructured hematite films have been studied by X-ray diffraction and scanning electron microscopy techniques. Surface characterization of the Co-modified hematite films has been carried out by X-ray photoelectron spectroscopy in order to study the chemical nature of Co onto these films. The hematite films exhibited an n-type behavior, and a donor carrier concentration, ND ¼3 � 10 17 and 10 18 cm � 3 for the un-modified and Co-modified ones, respectively. The photoelectrochemical performance of the un-modified and Co-modified electrochemically grown hematite thin films has been explored using a liquid-junction in a photoelectrochemical system in a 0.1 M NaOH electrolytic solution, under monochromatic illumination of wavelengths over the range 350‐600 nm. Significant performance gaining can be seen upon Co-modification throughout the illumination wavelengths. Cobalt modification enhances the IPCE by a factor of 1.1‐2.0 (370‐450 nm range), and by a factor of 2.0 (at 350 nm). With an IPCE of 46% at 370 nm at 1.43 V vs. RHE, this electrode is much more efficient in water photo-oxidation than the best published Fe2O3 single-crystal specimen." @default.
- W2086584726 created "2016-06-24" @default.
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- W2086584726 date "2011-01-01" @default.
- W2086584726 modified "2023-10-02" @default.
- W2086584726 title "Electrodeposited Nanostructured α-Fe2O3 Photoanodes for Solar Water Splitting: Effect of Surface Co-Modification on Photoelectrochemical Performance" @default.
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- W2086584726 doi "https://doi.org/10.1149/1.3599059" @default.
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