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Nano-FTIR microscopy and spectroscopy studies of atmospheric corrosion with a spatial resolution of 20 nm
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.
2016 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 108, 60-65 p.Article in journal (Refereed) PublishedText
Abstract [en]

Since corrosion commonly occurs heterogeneously over a surface, studies on a microscopic level are desired to obtain a complete picture of the process. Here, we demonstrate the capability of nano-FTIR microscopy to spectroscopically determine the nature of different corrosion products and their spatial distribution with a resolution of 20 nm, two-three orders of magnitude better than conventional IR microscopy. A copper surface was exposed to a humid atmosphere containing formic acid, and in addition to cuprite the corrosion product copper formate was observed to form inhomogeneously in particles of some tens to a few hundreds of nm.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 108, 60-65 p.
Keyword [en]
A. copper, B. AFM, B. IR spectroscopy, C. atmospheric corrosion, C. interfaces, Atmospheric corrosion, Copper, Corrosion, Copper formate, Copper surface, Corrosion products, FTIR microscopy, Humid atmospheres, Microscopic levels, Spatial resolution, Three orders of magnitude, Fourier transform infrared spectroscopy
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-186910DOI: 10.1016/j.corsci.2016.02.037ISI: 000375887100006ScopusID: 2-s2.0-84959920911OAI: diva2:929436

QC 20160518

Available from: 2016-05-18 Created: 2016-05-16 Last updated: 2016-06-13Bibliographically approved

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