期刊
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
卷 229, 期 -, 页码 144-154出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mseb.2017.12.026
关键词
Oxide nanoparticles; Cerium; Corrosion; Electrochemical techniques; Physisorption; Release
资金
- Regional Council of the Midi-Pyrenees
- Regional Council of the Mecaprotec Industries
Electrochemical impedance spectroscopy clearly appeared as a suitable technique to investigate the releasing properties of cerium (III) loaded on silica and boehmite nanocontainers. In this way the electrochemical behavior of the AA2024-T3 was evaluated by electrochemical impedance spectroscopy in a 0.045 mol L-1 NaCl solution with nanocontainers containing the inhibitor. Results show that the inhibitor release is influenced by both the chemical nature and the morphology of the nanocontainers. The lower loading and release phenomena were observed for the mesoporous silica nanocontainers, whereas the inhibitor is liberated until 168 h from dense silica nanocontainers. Boehmite nanocontainers combine a good loading ratio with a longer release until the second week of immersion.
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