Polyoxometalate ionic liquids as self-repairing acid-resistant corrosion protection

herrmann s, Kostrzewa MM, Wierschem A, Streb C (2014)

Publication Type: Journal article, Original article

Publication year: 2014

Journal

Angewandte Chemie International Edition Wiley

Publisher: Wiley-VCH Verlag

Book Volume: 53

Pages Range: 13596-13599

URI: http://onlinelibrary.wiley.com/doi/10.1002/anie.201408171/abstract

DOI: 10.1002/anie.201408171

Abstract

Corrosion is a global problem for any metallic structure or material. Herein we show how metals can easily be protected against acid corrosion using hydrophobic polyoxometalate-based ionic liquids (POM-ILs). Copper metal disks were coated with room-temperature POM-ILs composed of transition-metal functionalized Keggin anions [SiW11O39TM-(H2O)]^n- (TM=Cu^II, Fe^III) and quaternary alkylammonium cations (CnH2n+1)4N⁺ (n=7-8). The corrosion resistance against acetic acid vapors and simulated "acid rain" was significantly improved compared with commercial ionic liquids or solid polyoxometalate coatings. Mechanical damage to the POM-IL coating is self-repaired in less than one minute with full retention of the acid protection properties. The coating can easily be removed and recovered by rinsing with organic solvents.

Authors with CRIS profile

Monika Maria Kostrzewa Lehrstuhl für Strömungsmechanik Andreas Wierschem Professur für Hochdruckthermofluiddynamik und Rheologie Carsten Streb Lehrstuhl für Anorganische und Allgemeine Chemie

How to cite

APA:

herrmann, s., Kostrzewa, M.M., Wierschem, A., & Streb, C. (2014). Polyoxometalate ionic liquids as self-repairing acid-resistant corrosion protection. Angewandte Chemie International Edition, 53, 13596-13599. https://doi.org/10.1002/anie.201408171

MLA:

herrmann, sven, et al. "Polyoxometalate ionic liquids as self-repairing acid-resistant corrosion protection." Angewandte Chemie International Edition 53 (2014): 13596-13599.

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