|
authors |
Shchukin, DG; Lamaka, SV; Yasakau, KA; Zheludkevich, ML; Ferreira, MGS; Mohwald, H |
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nationality |
International |
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journal |
JOURNAL OF PHYSICAL CHEMISTRY C |
|
keywords |
CORROSION PROTECTION; DELIVERY SYSTEM; THIN-FILMS; INHIBITORS; PRETREATMENTS; MICROSPHERES; CHROMATE; SILICA |
|
abstract |
This work contributes to the development of a new generation of active corrosion protection coatings composed of hybrid sol-gel films doped with halloysite nanotubes able to release entrapped corrosion inhibitors in a controllable way. A silica-zirconia-based hybrid film was used in this work as an anticorrosion coating deposited on 2024 aluminum alloy. Halloysite nanotubes with inner voids loaded by corrosion inhibitors (2-mercaptobenzothiazole) and outer surfaces layer-by-tayer covered with polyelectrolyte multilayers were introduced into the hybrid films. The sol-gel film with the nanocontainers reveals enhanced long-term corrosion protection in comparison with the undoped sol-gel film. This effect is obtained because of the self-controlled release of the corrosion inhibitor triggered by the corrosion processes. Utilization of the inner halloysite nanotube lumen as a storage medium for the corrosion inhibitor offers a novel way of fabricating composite core-shell type nanomaterials with their further application as a main component of feedback-active coatings. |
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publisher |
AMER CHEMICAL SOC |
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issn |
1932-7447 |
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year published |
2008 |
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volume |
112 |
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issue |
4 |
|
beginning page |
958 |
|
ending page |
964 |
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digital object identifier (doi) |
10.1021/jp076188r |
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web of science category |
Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary |
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subject category |
Chemistry; Science & Technology - Other Topics; Materials Science |
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unique article identifier |
WOS:000252619100013
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