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Mössbauer spectra of passivated iron surfaces

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
23
Issue
4
Identifiers
DOI: 10.1016/0009-2614(73)89016-5

Abstract

Abstract Cobalt-57 was electrodeposited on mild steel, and the Mössbauer spectrum of the Fe-57 formed by electron capture observed before and after passivation with K 2CrO 4 solution. After passivation Fe(III) species were observed, and the low recoilless fraction indicated a poorly crystalline film. The surface layer of unpassivated iron in contact with water appears to consist of Fe(III) species, even under reducing conditions.

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