Study on the Effect of TiO2 Micromorphology on the Photoelectrochemical Cathodic Protection Performance of 316 L Stainless Steel
The micromorphology of TiO2 photoelectrod was effectively regulated by controlling the concentration of tetrabutyl titanate during the hydrothermal reaction process,and the effect of morphology on the photoelectrochemical cathodic protection performance of 316L stainless steel was also investigated.The experimental results show that TiO2-2 has the maximum photoinduced potential drop and photoinduced current density when the addition amount of tetrabutyl titanate is 1.25mL,indicating that it has the optimal photoelectrochemical cathodic protection property for 316L stainless steel,and the results of electrochemical impedance spectra indicate that the enhancement of the carrier mobility is the main reason for the increase of its photoelectrochemical cathodic protection performance.
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