In situ Mössbauer Study of the Passive Layer Formed on the Iron Anode in Alkaline Electrolyte

[img]PDF - Authorized users only
Language: English
301Kb
Title:In situ Mössbauer Study of the Passive Layer Formed on the Iron Anode in Alkaline Electrolyte
Creators:
Bouzek, Karel
Nejezchleba, Martin
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 64, 12, pp. 2044-2060
Uncontrolled Keywords:Hydroxide concentration, Corrosion resistivity, Cathodic activation, Electrochemistry, Iron, Mössbauer spectroscopy, Composition

Abstract

<i>In situ</i> Mössbauer spectra of the iron electrode at anodic potential were measured in sodium hydroxide solution over a wide range of concentrations (0.1 - 14 mol&nbsp;l<sup>-1</sup>). It was found that the <i>in situ</i> Mössbauer spectra exhibit generally one sextet and one doublet corresponding to the oxide layer on the anode surface. Parameters of these spectra show only minor variations within the electrolyte concentration range of 0.1 - 7 M NaOH. A pronounced change in the spectra was observed in 14&nbsp;M NaOH. The major processes taking place in the anode surface layer are based on the break-down of protective properties of the passive layer, incipient intense metal dissolution and subsequent oxidation. Important differences were also found between <i>in situ</i> and <i>ex situ</i> spectra measurements. <p>

Title:In situ Mössbauer Study of the Passive Layer Formed on the Iron Anode in Alkaline Electrolyte
Creators:
Bouzek, Karel
Nejezchleba, Martin
Uncontrolled Keywords:Hydroxide concentration, Corrosion resistivity, Cathodic activation, Electrochemistry, Iron, Mössbauer spectroscopy, Composition
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:64
Number:12
Page Range:pp. 2044-2060
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19992044UNSPECIFIED
ID Code:1615
Item Type:Article
Deposited On:06 Feb 2009 17:11
Last Modified:06 Feb 2009 16:11

Citation

Bouzek, Karel; Nejezchleba, Martin (1999) In situ Mössbauer Study of the Passive Layer Formed on the Iron Anode in Alkaline Electrolyte. Collection of Czechoslovak Chemical Communications, 64 (12). pp. 2044-2060. ISSN 0010-0765

Repository Staff Only: item control page