Journal ArticleDOI
Voltammetric response of iron hydroxide layers precipitated on platinum electrodes in alkaline solution
TLDR
In this article, the electrochemical response of the precipitated iron hydroxide layer depends considerably on the layer thickness and precipitation conditions and was interpreted in terms of the complex structure involving an inner poorly hydrated layer and an outer porous layer.About:
This article is published in Electrochimica Acta.The article was published on 1986-12-01. It has received 14 citations till now. The article focuses on the topics: Hydroxide & Platinum.read more
Citations
More filters
Journal ArticleDOI
Iron dissolution and passivation in K2CO3-KHCO3 solutions. rotating ring disc electrode and XPS studies
TL;DR: In this paper, rotating ringdisc electrode studies on the anodic dissolution and passivation of iron in potassium carbonate/bicarbonate buffers at 25°C were conducted.
Journal ArticleDOI
The surface oxidation of pyrite in alkaline solution
TL;DR: In this article, the collectorless flotation of pyrite has been studied by conventional techniques and is correlated to the electrochemical behaviour of pithite in alkaline solution (1m NaClO4, pH 11).
Journal ArticleDOI
In-Situ Raman Spectroscopy of α- and γ-FeOOH during Cathodic Load
Kristoffer Hedenstedt,Kristoffer Hedenstedt,Joakim Bäckström,Joakim Bäckström,Elisabet Ahlberg +4 more
TL;DR: Water reduction on corroded iron surfaces is technologically and fundamentally important as discussed by the authors, and the technological interest originates from the chlorate process where water reduction is the main cathode process.
Journal ArticleDOI
Electrochemical study of surface oxidation and collectorless flotation of arsenopyrite
TL;DR: The surface oxidation of arsenopyrite in alkaline solutions has been studied by cyclic voltammetry as discussed by the authors, showing that the initial oxidation produces ferric hydroxide and a realgar-like compound according to the following rection: FeAsS + 3H_2 O - \to Fe(OH)_3 + HASO_4^{2 - } + S^0 + 10H^ + + 8e^ -$$====== Ferric hydoxide is precipitated and arsenate stays on the surface.
Journal ArticleDOI
Electrochemical and in situ magnetic study of iron/iron oxide films oxidized and reduced in KOH solution for magneto-ionic switching
TL;DR: In this article, an electrochemical and in situ magnetic study is conducted to identify key parameters for room-temperature electrochemical (magneto-ionic) switching of magnetism by repeated oxidation and reduction of iron species in aqueous KOH.
References
More filters
Journal ArticleDOI
The role of ion adsorption in surface oxide formation and reduction at noble metals: General features of the surface process
Journal ArticleDOI
An electrochemical study of phase-transitions in rust layers
TL;DR: In this paper, isolated rust layers have been investigated by electrochemical methods to find out whether their reduction and re-oxidation can affect the atmospheric corrosion of iron, and the results showed that the reduced surface layer can be easily oxidized back to γ-FeOOH, magnetite can partly be oxidized to Fe 2 O 3.
Journal ArticleDOI
The thermodynamic consideration for Fe-H2O system at 25°C
TL;DR: For a better understanding of the rusting of iron and steels in aqueous solutions producing FeOOH's, the standard free energies of formation (ΔFo) of iron species in Fe-H2O system at 25°C were summarized and the solubility and potential-pH diagrams were constructed in which α-FeOOH, γ-FeOH and FeOH+, etc. were considered.
Journal ArticleDOI
The potentiodynamic behaviour of iron in alkaline solutions
TL;DR: In this paper, the potentiodynamic behavior of iron in alkaline solutions under carefully controlled perturbation conditions reveals that the overall electrochemical process is more involved than was thought earlier, and the electrochemical characteristics of the systems are explained through a series of successive conjugated redox couples principally involving Fe(OH), Fe( OH) 2 and FeOOH as limiting stoichiometric species.
Journal ArticleDOI
Effect of Crystal Structure on the Anodic Oxidation of Nickel
J. L. Weininger,M. W. Breiter +1 more
TL;DR: In this paper, the formation of and on different crystal planes of nickel, and of polycrystalline nickel, was studied in alkaline solution, and the reactionivity on anodization, characterized by the potential at which the equivalent of one monolayer of hydroxide is formed, was in the same order.