The Effect of Iron in Galvanic Zinc Anodes in Sea Water

Corrosion Performance of Aluminum-containing Zinc Coatings

“…The highest corrosion resistance was exhibited by coatings containing about 12 % Al. The corrosion products consisted mainly of simonkolleite Zn 5 (OH) 8 16 CO 3 · 4(H 2 O) content of the corrosion product increased with an increase in aluminum content in the coatings. It is the dominant corrosion product for the 23Al coating.…”

“…However, it is well known that the corrosion performance of zinc can be significantly affected by the iron content in the zinc. 15,16) Teel and Anderson 16) found that a zinc anode functioned well only when the iron content was maintained at a very low level in the high purity zinc anodes. They recommended that the iron content be kept below 0.0015 % in otherwise pure zinc.…”

X‐Ray Photoelectron and Auger Spectroscopic Study of the Underpotential Deposition of Ag and Cu on Pt Electrodes

“…As noted previously (8), the anodic stripping of UPD Ag occurs concurrently with the oxidation of the Pt substrate electrode. Without the use of a ring-disk type of electrode system, accurate coulometry to separate the two oxidation processes is very difficult.…”

“…Without the use of a ring-disk type of electrode system, accurate coulometry to separate the two oxidation processes is very difficult. Therefore, the results presented in this paper will rest on the previously presented coulometric results (8) which show that the first monolayer of UPD Ag in 0.2M H2SO~ oxidizes over a broad potential range from 0.65 to 1.0V vs. SCE. The potential for maximum oxidation current of the UPD Ag occurs at approximately 0.74V vs. SCE.…”

“…From previous work (8) no Ag UPD adatoms should be present on the Pt surface at this oxidation potential. No trace of Ag was present in the XPS analysis with a detection limit of approximately 1% of a monolayer of Ag.…”