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Enhanced Patterned Cocatalyst TiO2/Fe2O3 Photoanodes for Water-Splitting
Wei-Hsuan Hung1, Yung-Jen Teng2, Chuan-Ming Tseng3,4
1Institute of Materials Science and Engineering, National Central University, No. 300 Jhong-da Rd., Jhongli City, 320, Taoyuan County, Taiwan, ROC. hungwh@ncu.edu.tw.
Abstract:
In this study, we used a hot-pressing process to enhance the photocatalytic properties of TiO2/Fe2O3 bimetallic oxide with a periodic patterned structure on the surface to increase photon absorption for photocatalysis in the oxygen evolution reaction for water splitting. The hot-pressed samples show that combining the two metal oxides improves the absorption band edge of the electrode at different wavelengths. The patterned structure obtained using the hot-pressing process successfully improves photon absorption, resulting in a two-fold enhancement compared with a flat surface electrode.
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