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Redox Reactions on Anodised or Passivated Metals

B. Lovreček ; Institute of Electrochemistry and Electrochemical Technology, Faculty of Technology, University of Zagreb, 41000 Zagreb, Croatia, Yugoslavia
B. Babić ; Institute of Electrochemistry and Electrochemical Technology, Faculty of Technology, University of Zagreb, 41000 Zagreb, Croatia, Yugoslavia
I. Eškinja ; Institute of Electrochemistry and Electrochemical Technology, Faculty of Technology, University of Zagreb, 41000 Zagreb, Croatia, Yugoslavia
O. Korelić ; Institute of Electrochemistry and Electrochemical Technology, Faculty of Technology, University of Zagreb, 41000 Zagreb, Croatia, Yugoslavia
N. Petric ; Institute of Electrochemistry and Electrochemical Technology, Faculty of Technology, University of Zagreb, 41000 Zagreb, Croatia, Yugoslavia


Puni tekst: engleski pdf 7.967 Kb

str. 197-205

preuzimanja: 252

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Sažetak

The simple redox reactions on anodised or passivated metal
(Al, Fe, Zn) were investigated by the current-potential method.
The redox systems were chosen so that the electrochemical reaction
was practically under the control of the diffusion in the electrolyte
in case of unhindered charge transfer in the solid phase and on
the contact electrode/electrolyte. Measurements were performed in
a wider potential range, but on the previously anodised or passivated
metal, in which case the potential range investigated was within
the limits corresponding to low equivalent corrosion currents for
the pure supporting electrolyte. In all the investigated cases the
phenomena were observed, showing that the electron structure of
the solid phase and possible potential barriers of the metal/phase
layer/solution system had a predominant influence.

Ključne riječi

Hrčak ID:

197298

URI

https://hrcak.srce.hr/197298

Posjeta: 387 *