Atmospheric corrosion of zinc by organic constituents I. The role of the zinc/water and water/air interfaces studied by infrared reflection/absorption spectroscopy and vibrational sum frequency spectroscopy
2006 (English)In: Journal of the Electrochemical Society, ISSN 0013-4651, Vol. 153, no 3, B113-B120 p.Article in journal (Refereed) Published
The zinc oxide/water and water/air interfaces have been investigated in order to elucidate the role of these two interfaces in an atmospheric corrosion process. Vibrational sum frequency spectroscopy (VSFS) has been used to study the water/air interface of aqueous acetic acid and acetaldehyde solutions. The VSFS studies revealed that the interfacial region of the acetic acid solutions is dominated by various species formed by hydrogen bonding, whereas acetaldehyde underwent a hydration process to form a gem-diol. In both cases, even small additions resulted in a breakdown of the surface structure found in pure water. Infrared reflection/absorption spectroscopy (IRAS) has been utilized to examine the zinc oxide/ water interface upon exposure of gaseous acetic acid and acetaldehyde at various relative humidities. The in situ IRAS investigations indicated a formation of zinc acetate both when the zinc oxide surface was exposed to acetic acid and acetaldehyde. Thus, despite being different in nature, these compounds resulted in the same end product in the corrosion process studied.
Place, publisher, year, edition, pages
2006. Vol. 153, no 3, B113-B120 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-24287DOI: 10.1149/1.2164788ISI: 000235136600037ScopusID: 2-s2.0-32044475342OAI: oai:DiVA.org:kth-24287DiVA: diva2:346272
QC 20100831. Tidigare titel: Atmospheric corrosion of zinc by organic constituents: 1. The role of the zinc/water and water/air interfaces studied by IRAS and VSFS2010-08-312010-08-312010-10-29Bibliographically approved