Communication

Layer-by-Layer Assembled Nanocontainers for Self-Healing Corrosion Protection†

  1. D. G. Shchukin1,
  2. M. Zheludkevich2,
  3. K. Yasakau2,
  4. S. Lamaka2,
  5. M. G. S. Ferreira2,
  6. H. Möhwald1

Article first published online: 27 JUN 2006

DOI: 10.1002/adma.200502053

Issue

Advanced Materials

Advanced Materials

Volume 18, Issue 13, pages 1672–1678, July, 2006

Additional Information

How to Cite

Shchukin, D. G., Zheludkevich, M., Yasakau, K., Lamaka, S., Ferreira, M. G. S. and Möhwald, H. (2006), Layer-by-Layer Assembled Nanocontainers for Self-Healing Corrosion Protection. Adv. Mater., 18: 1672–1678. doi: 10.1002/adma.200502053

Author Information

  1. 1

    Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany

  2. 2

    Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal

  1. †

    This work was supported by EU FP6 project “Nanocapsule” (contract #MIF1-CT-2004-002462), FCT project POCI/CTM/59234/2004. D.S. acknowledges the NATO Collaboration Linkage Programme (grant #CLG 981299). The authors thank R. Pitschke for TEM analysis, H. Zastrow and A. Praast for electrophoretic mobility measurements, F. Montemor and P. Cecilio for SVET experiments. Supporting Information is available online from Wiley InterScience or from the author.

Publication History

  1. Issue published online: 27 JUN 2006
  2. Article first published online: 27 JUN 2006
  3. Manuscript Accepted: 28 DEC 2005
  4. Manuscript Received: 27 SEP 2005

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Keywords:

  • Aluminum alloys;
  • Coatings, reactive;
  • Corrosion;
  • Layer-by-layer assembly;
  • Polyelectrolytes
Thumbnail image of graphical abstract

The self-healing anticorrosion effect of layer-by-layer (LbL) assembled nanoreservoirs (polyelectrolyte-coated nanoparticles) embedded in a hybrid coating deposited onto an Al alloy is investigated (see figure). The corrosion inhibitor, benzotriazole, is entrapped in the polyelectrolyte at the LbL assembly step; its release is initiated by local pH changes near the corrosion-damaged zones in the alloy. The nanoreservoirs increase long-term corrosion protection of the substrate and provide effective inhibitor storage and its prolonged release on demand.

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