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

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=CuII, FeIII) 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.

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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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