Study on electrochemical properties of active coating PbO2-CeO2 reinforced Al-based composite coating electrode.

In this paper, Al/TiB₂ + 10%Ti₄O₇/PbO₂-xCeO₂ composite electrode materials were prepared by thermal spraying technology and electrochemical deposition method. The microstructure of the coatings with different contents of Ce³⁺ was observed by scanning electron microscope, and the phase composition of the coatings was analyzed by X-ray diffractometer. The electrochemical properties of the electrodes were studied by Tafel, EIS, LSV, and CV. The results show that with the increase of Ce³⁺ concentration, the overall performance of the electrode is improved, but when the content exceeds 1.5 g/L, it will cause agglomeration and reduce the electrode performance. Therefore, when the Ce³⁺ concentration is 1.5 g/L, the comprehensive performance and effect of the electrode are the best. Moreover, it can be seen from the SEM image that after adding Ce³⁺, the grains are denser than that of the composite anode without addition. [ABSTRACT FROM AUTHOR]