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Enhanced Surface Kinetics and Charge Transfer of BiVO4 Photoanodes by Rh2 O3 Cocatalyst Loading for Improved Solar
Li Ting Gan1, Yang Zhang1, Peng Fei Liu1
1Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China.
Abstract:
A Rh2 O3 /BiVO4 composite photoanode exhibits enhanced surface reaction kinetics and charge transfer efficiency, enabling a photocurrent density of ca. 3.5 mA/cm2 at 1.23 V (vs. RHE), which is about 3.89 times higher than that of the pristine BiVO4 , with a lower onset potential of 0.29 V (vs. RHE).
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