Atmospheric corrosion
Model in-situ studies of indoor atmospheric corrosion processes at various coated and uncoated metal surfaces are performed with a multianalytical approach.
Recent studies involve investigations of how self-assembled monolayers of alkyl thiols and selenols can be used as corrosion inhibitors to protect copper surfaces exposed to a humid atmosphere containing formic acid, a common indoor corrosion promoter. A combination of three analytical techniques has allowed examinations of the nature (IRAS) and mass (QCM) of the corrosion products formed, as well as induced changes in the order and orientation of the corrosion inhibitor (VSFS) to be performed.
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Other research activities focus on aspects of atmospheric corrosion of outdoor construction materials, addressing the entire scenario from an in-depth understanding of corrosion processes on the surface of e.g. roofing material, to quantify and understand metal runoff mechanisms and rates, to investigate the chemical form and bioavailability of released metals and how it changes in contact with different solid surfaces in the near vicinity of buildings, possibilities for natural retention of released metals with surfaces such as soil, limestone and concrete, remobilization possibilities and ecotoxicity aspects on aquatic organisms. This research is highly interdisciplinary and conducted in close collaboration with expertise in cultural heritage aspects, ecotoxicology, soil- colloidal- and environmental science.
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