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We developed CuO and CeMo microcontainers, which were filled with Bromosphaerol (CuO (BR)), Sea‐Nine 211 (CuO (SN)) and 8‐Hydroxyquinoline (CeMo (8‐HQ)). We created coatings on metals using the basic resins we took from the WILKENS and Re‐Turn companies without additives of the companies. The coatings were studied in the laboratory after exposure to marine environment in Mikrolimano harbor in a distance of 12 km southwest from the city of Piraeus in the east coast of the Saronic Gulf (WILKENS) and Singapore harbor (Re‐Turn). Laboratory measurements showed that CeMo (8‐HQ) coatings exhibit better anticorrosion stability of paints in sea water than commercial paints. With regard to the incorporation of CuO (BR) into commercial paints, the results showed a drastic improvement in antifouling behavior from that resulting from commercial paints. The contact angle with water is improved by Θ = 70° to Θ = 115° possible through morphology of the surface due to the effect of the incorporation of microcontainers ensuring a better cruising behavior of the ship. This entails a dramatic rise in cruising speed, reducing fuel consumption and reducing air pollution. The technology was tested by the partial painting of two ships with our technology, one ship which traveled for a year in the Adriatic Sea (Sea Anemos) and the other traveled over a year in the Nord Sea (Berge Arzew). [ABSTRACT FROM AUTHOR]

Cerium titanium oxide nanocontainers were synthesized through a two-step process and then loaded with corrosion inhibitors 2-mercaptobenzothiazole (2-MB) and 8-hydroxyquinoline (8-HQ). First, polystyrene nanospheres (PS) were produced using polymerization in suspension. Second, the PS spheres were coated via the sol-gel method to form a cerium titanium oxide layer. Finally, the nanocontainers were made by calcination of the coated PS nanospheres. The size of the containers was 180 ± 10 nm as determined by Scanning Electron Microscopy (SEM). X-Ray Diffraction Analysis (XRD) showed that the nanocontainers consist of anatase and cerianite crystalline phases. The presence and loading of the inhibitors in the nanocontainers was confirmed with Fourier Transform Infrared Spectroscopy (FT-IR) and Thermo Gravimetric Analysis (TGA), respectively. TGA revealed the amount of 10.43 and 4.61% w/w for 2-MB and 8-HQ in the nanocontainers, respectively. Furthermore, the release kinetics of the inhibitors from the nanocontainers was studied in corrosive environment using electrochemical impedance spectroscopy (EIS) in the presence of aluminum alloys 2024-T3 (AA2024-T3). [ABSTRACT FROM AUTHOR]

Cerium molybdate nanocontainers were synthesized using a two-step process and then loaded with 8-hydroxyquinoline (8-HQ) or with 1-H-benzotriazole-4-sulfonic acid (1-BSA). First, polystyrene (PS) nanospheres were produced using emulsion polymerization. Second, the PS spheres were coated via the sol–gel method to form a cerium molybdate layer. Finally, the nanocontainers were made by calcination of cerium molybdate coated PS nanospheres. The products were characterized by scanning electron microscopy (SEM/EDX), transmission electron microscopy, FT-infrared (FT-IR) spectroscopy, X-ray diffraction, thermogravimetric analysis (TGA), and differential thermal analysis. Moreover, nanocontainers were loaded with 8-HQ or with 1-BSA and their presence was confirmed with FT-IR. The loading of the inhibitors in the nanocontainers was estimated with TGA. The loading amount of 8-HQ was 5.22% w/w and that of 1-BSA was 16.43%. Based on the size of the nanocontainers and the assumption that they are not broken, we deduced to the amount of approximately with 1.07 × 106 molecules of 8-HQ and 2.35 × 106 molecules of 1-BSA per nanocontainer. Furthermore, release of 8-HQ or 1-BSA in corrosive environment was studied by potentiodynamic measurements for aluminum alloys 2024-T3 (AA2024-T3) and DC01 carbon steel (DC01-CS) samples, showing that the inhibitors are released from the nanocontainers, suppressing the corrosion activities. SEM photographs confirmed that the nanocontainers maintained their shape after suspension in 0.5 M NaCl solution for more than 72 h. Moreover, release of 8-HQ or 1-BSA in water was studied using spectrophotometer. [ABSTRACT FROM AUTHOR]