| 초록 |
In this study, BiVO4 photoanode is prepared via the chemical reaction of electrodeposited Bi metal electrode with a vanadium precursor, and the Bi electrodeposition conditions are modified to optimize the resultant BiVO4's photoelectrochemical performance. The nucleation and growth kinetics of Bi dendrites are varied by changing the applied potential and temperature during electrodeposition. This affects the structure and morphology of Bi as well as the properties of BiVO4 after the chemical reaction. Specifically, the morphology, particle size, porosity, and facet exposure of BiVO4 are changed during the electrodeposition of Bi. The decrease in particle size and increase in porosity and active facet exposure are responsible for the improved photoelectrochemical performance. Therefore, the structural effect of BiVO4 on the performance can be elucidated clearly. |
