Enhanced Weathering and Corrosion Resistance of Eu-Doped ZnO Solid Solution Material by Fluorescence Modification

Abstract

Influencing the electrochemical properties of materials by modulating luminescence is a fascinating topic. It was found that the corrosion protection of the material could be enhanced by fluorescence. Utilizing the fluorescence of the material, the energy of the photons entering the system is reduced, thereby increasing the durability of the coating. The experimental results showed that the europium-doped zinc oxide solid solution (ZEOSS) composite shielding layer has good weathering resistance. The corrosion inhibition efficiency of the ZEOSS composite shielding layer in the laboratory was 751.8% of that of the epoxy resin coating. The corrosion inhibition efficiency in the atmosphere was further improved to 916.0%. The improved corrosion resistance is attributed to the improvement in energy conversion, electron transport hindrance, and shielding properties of the ZEOSS material. Therefore, it is of great importance to explore the enhanced corrosion inhibition of materials through optical modifications.

Vanadium-Doped Induction of Bare Active Crystalline Planes of Tungsten Oxide and Its Excellent Anticorrosion Properties

“…In the Bode plots in Figure c,d, the phase angle in the high frequency region (10 4 to 10 5 Hz) indicates the protective capacity of the composite coating . The higher the phase angle, the greater is the corrosion protection . In comparison with the WO 3 and pure epoxy coatings, the phase angle of the VW composite coating tended to move toward higher frequencies (10 4 → 10 5 Hz), thereby indicating that the VW composite coating was more hydrophobic, which provides more comprehensive protection to the iron substrate and significantly improves the corrosion protection of the coating.…”

“…27 The higher the phase angle, the greater is the corrosion protection. 28 In comparison with the WO 3 and pure epoxy coatings, the phase angle of the VW composite coating tended to move toward higher frequencies (10 4 → 10 5 Hz), thereby indicating that the VW composite coating was more hydrophobic, 29 which provides more comprehensive protection to the iron substrate and significantly improves the corrosion protection of the coating. The contact angle test is shown in Figure 5.…”

Design and Synthesis of Mosaic ZnO/g-C3N4 Heterojunction Materials with Excellent Anticorrosion Performance

“…In comparison with pure epoxy resin coating, the corrosion potential ( E corr ) of the ZCNs coatings shifted toward the cathodic region, suggesting that the ZCNs coatings have cathodic protection . Corrosion current density ( I corr ) is an important parameter for determining the corrosion rate, and low corrosion current density indicates that the coating has high corrosion resistance . The corrosion current density was calculated by using Tafel extrapolation (Figure d).…”

“…28 Corrosion current density (I corr ) is an important parameter for determining the corrosion rate, and low corrosion current density indicates that the coating has high corrosion resistance. 29 The corrosion current density was calculated by using Tafel extrapolation (Figure 5d). The corrosion efficiency was calculated from eq 5.…”

Lanthanides: The Key to Durable and Sustainable Corrosion Protection

“…Europium (Eu), the seventh element of the Ln series, is the most reactive metal, having reactivity equal to calcium and the lowest density as compared to other elements of the Ln series. Eu plays a vital role in various fields due to its luminosity, and it has been used in display technologies, biomedical science, and anticounterfeiting technology. − Zhao et al found that Eu atoms having a high energy conversion rate increased the band gap of ZnO by providing additional energy levels, and thus improving the properties of ZnO. Moreover, the corrosion testing revealed that this variation in electronic structure, 9 times increased the corrosion inhibition efficiency.…”