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López-Delgado, Humberto A.; Jiménez‐Casas, Marcos; Scott, Ian M.

doi:10.1023/a:1006110118669

Cited by 20 publications

(1 citation statement)

References 24 publications

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“…The samples were exposed to aqueous acetic acid (50 %) vapors in a closed plastic vessel for 24 h. Acetic acid was chosen as a model for volatile corrosive agents involved in the environmental corrosion of copper. [20] After the exposure, photographs of the disks were taken (Figure 1). The Cu disks were then rinsed, dried, and the weight loss was determined.…”

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confidence: 99%

Polyoxometalate Ionic Liquids as Self‐Repairing Acid‐Resistant Corrosion Protection

et al. 2014

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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 [SiW11 O39 TM(H2 O)](n-) (TM=Cu(II) , Fe(III) ) and quaternary alkylammonium cations (Cn H2 n+1 )4 N(+) (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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confidence: 99%