NDLI: High-rate electrochemical dissolution of Ni–Cu alloys in nitrate electrolyte

Content Provider	Springer Nature Link
Author	Hoogsteen, W. Kuindersma, S. Minks, B.P. Davydov, A.D.
Copyright Year	2002
Abstract	High-rate anodic dissolution of nickel, copper, and two alloys Ni30Cu70 and Ni65Cu32 in NaNO$_{3}$ solution was studied, using a flow-channel electrochemical cell. In all experiments, the initial interelectrode distance was 208 μm and the electrolyte velocity was 15 m s$^{−1}$. The dependence of the current efficiency and surface brightening on the current density was determined. Voltage transients at various current densities were measured and voltammograms were constructed. Compared to nickel and copper, the alloys showed intermediate behaviour, especially at j > j $_{1}$. The shape of the voltage transients and the occurrence of surface brightening were more suitable to detect the existence of a limiting current region than voltammograms, especially for Ni. Using the voltammograms and literature data, anodic and cathodic potentials and the voltage drop in the interelectrode gap at a given current density were estimated for j < j $_{1}$.
Starting Page	1029
Ending Page	1037
Page Count	9
File Format	PDF
ISSN	0021891X
Journal	Journal of Applied Electrochemistry
Volume Number	32
Issue Number	9
e-ISSN	15728838
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2002-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physical Chemistry Electrochemistry Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Chemical Engineering Electrochemistry

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