Radiotracer study of embedding of so42- and Cl - ions into the surface film formed on Mn corroding in perchlorate solution

Research output: Contribution to journalArticle

Abstract

The adsorption of radiolabelled Cl- and SO4 - ions from aqueous perchlorate solutions onto powdered Mn metal was studied. It was found that the extent of the adsorption is determined by the continuous increase of the thickness of the surface oxide/hydroxide layer formed as a consequence of the slow corrosion of the metal in neutral or quasi-neutral media. At low pH values (pH <6) the extent of the adsorption decrease significantly owing to the dissolution of the surface layer. At high pH values (pH > 10) the adsorption decreases presumably owing to the competitive adsorption of OH- ions or the modification of the adsorption centres by some kind of deprotonation.

Original languageEnglish
Pages (from-to)507-514
Number of pages8
JournalCorrosion Science
Volume47
Issue number2
DOIs
Publication statusPublished - Feb 2005

Fingerprint

Ions
Adsorption
Metals
Deprotonation
Oxides
perchlorate
Corrosion
hydroxide ion

Keywords

  • Anion adsorption
  • Manganese
  • Oxide/hydroxide film
  • Perchlorate media
  • Radiotracer study

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

@article{817da8c02a76498ca1f306d33523475a,
title = "Radiotracer study of embedding of so42- and Cl - ions into the surface film formed on Mn corroding in perchlorate solution",
abstract = "The adsorption of radiolabelled Cl- and SO4 - ions from aqueous perchlorate solutions onto powdered Mn metal was studied. It was found that the extent of the adsorption is determined by the continuous increase of the thickness of the surface oxide/hydroxide layer formed as a consequence of the slow corrosion of the metal in neutral or quasi-neutral media. At low pH values (pH <6) the extent of the adsorption decrease significantly owing to the dissolution of the surface layer. At high pH values (pH > 10) the adsorption decreases presumably owing to the competitive adsorption of OH- ions or the modification of the adsorption centres by some kind of deprotonation.",
keywords = "Anion adsorption, Manganese, Oxide/hydroxide film, Perchlorate media, Radiotracer study",
author = "G. Hor{\'a}nyi",
year = "2005",
month = "2",
doi = "10.1016/j.corsci.2004.05.017",
language = "English",
volume = "47",
pages = "507--514",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - Radiotracer study of embedding of so42- and Cl - ions into the surface film formed on Mn corroding in perchlorate solution

AU - Horányi, G.

PY - 2005/2

Y1 - 2005/2

N2 - The adsorption of radiolabelled Cl- and SO4 - ions from aqueous perchlorate solutions onto powdered Mn metal was studied. It was found that the extent of the adsorption is determined by the continuous increase of the thickness of the surface oxide/hydroxide layer formed as a consequence of the slow corrosion of the metal in neutral or quasi-neutral media. At low pH values (pH <6) the extent of the adsorption decrease significantly owing to the dissolution of the surface layer. At high pH values (pH > 10) the adsorption decreases presumably owing to the competitive adsorption of OH- ions or the modification of the adsorption centres by some kind of deprotonation.

AB - The adsorption of radiolabelled Cl- and SO4 - ions from aqueous perchlorate solutions onto powdered Mn metal was studied. It was found that the extent of the adsorption is determined by the continuous increase of the thickness of the surface oxide/hydroxide layer formed as a consequence of the slow corrosion of the metal in neutral or quasi-neutral media. At low pH values (pH <6) the extent of the adsorption decrease significantly owing to the dissolution of the surface layer. At high pH values (pH > 10) the adsorption decreases presumably owing to the competitive adsorption of OH- ions or the modification of the adsorption centres by some kind of deprotonation.

KW - Anion adsorption

KW - Manganese

KW - Oxide/hydroxide film

KW - Perchlorate media

KW - Radiotracer study

UR - http://www.scopus.com/inward/record.url?scp=10044294865&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10044294865&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2004.05.017

DO - 10.1016/j.corsci.2004.05.017

M3 - Article

AN - SCOPUS:10044294865

VL - 47

SP - 507

EP - 514

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

IS - 2

ER -