CER - Central Repository
Institute of Chemistry, Technology and Metallurgy
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Abnormal polarization change in anodic dissolution of aluminium at high current densities

Authorized Users Only
1981
Authors
Despić, Aleksandar
Dražić, Dragutin M.
Zečević, Strahinja K.
Atanasoski, Radoslav
Article (Published version)
Metadata
Show full item record
Abstract
Two types of anodic oxidation of aluminum have been recognized in the past: a) oxidation requiring a steady increase of voltage drop across the interface up to a few hundred volts in order to overcome the resistance of increasingly thick compact oxide layer and maintain a steady oxidation current, and b) a porous oxide layer forming oxidation resulting in layers of significant thickness, rather regular structure and with good adsorbing qualities (representing the basis of decorative anodization processes). The third type of oxidation is recognized, following seemingly normal anodic dissolution kinetics. This type of dissolution has been obtained in chloride, chlorate, and perchlorate solution and in some other electrolytes. In this third type, it has been found recently, however, that a careful elimination of pseudo-ohmic overpotential leads to an unusual type of polarization behavior, whereby after reaching some current density range, the polarization of the aluminum-electrolyte inter...face alone, decreases with increasing current density in an approximately linear. It is the purpose of this short communication to report in more detail about this phenomenon which is tantamount to the appearance of negative equivalent resistance at the surface.

Keywords:
polarization / aluminium / Electrochemical deposition / anodic oxidation / dissolution kinetics / aluminum-electrolyte interface
Source:
Electrochimica Acta, 1981, 26, 1, 173-177
Publisher:
  • Elsevier

DOI: 10.1016/0013-4686(81)80021-7

ISSN: 0013-4686

Scopus: 2-s2.0-26744444980
[ Google Scholar ]
17
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/4414
Collections
  • Radovi istraživača / Researchers' publications
Institution
IHTM
TY  - JOUR
AU  - Despić, Aleksandar
AU  - Dražić, Dragutin M.
AU  - Zečević, Strahinja K.
AU  - Atanasoski, Radoslav
PY  - 1981
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4414
AB  - Two types of anodic oxidation of aluminum have been recognized in the past: a) oxidation requiring a steady increase of voltage drop across the interface up to a few hundred volts in order to overcome the resistance of increasingly thick compact oxide layer and maintain a steady oxidation current, and b) a porous oxide layer forming oxidation resulting in layers of significant thickness, rather regular structure and with good adsorbing qualities (representing the basis of decorative anodization processes). The third type of oxidation is recognized, following seemingly normal anodic dissolution kinetics. This type of dissolution has been obtained in chloride, chlorate, and perchlorate solution and in some other electrolytes. In this third type, it has been found recently, however, that a careful elimination of pseudo-ohmic overpotential leads to an unusual type of polarization behavior, whereby after reaching some current density range, the polarization of the aluminum-electrolyte interface alone, decreases with increasing current density in an approximately linear. It is the purpose of this short communication to report in more detail about this phenomenon which is tantamount to the appearance of negative equivalent resistance at the surface.
PB  - Elsevier
T2  - Electrochimica Acta
T1  - Abnormal polarization change in anodic dissolution of aluminium at high current densities
VL  - 26
IS  - 1
SP  - 173
EP  - 177
DO  - 10.1016/0013-4686(81)80021-7
ER  - 
@article{
author = "Despić, Aleksandar and Dražić, Dragutin M. and Zečević, Strahinja K. and Atanasoski, Radoslav",
year = "1981",
url = "https://cer.ihtm.bg.ac.rs/handle/123456789/4414",
abstract = "Two types of anodic oxidation of aluminum have been recognized in the past: a) oxidation requiring a steady increase of voltage drop across the interface up to a few hundred volts in order to overcome the resistance of increasingly thick compact oxide layer and maintain a steady oxidation current, and b) a porous oxide layer forming oxidation resulting in layers of significant thickness, rather regular structure and with good adsorbing qualities (representing the basis of decorative anodization processes). The third type of oxidation is recognized, following seemingly normal anodic dissolution kinetics. This type of dissolution has been obtained in chloride, chlorate, and perchlorate solution and in some other electrolytes. In this third type, it has been found recently, however, that a careful elimination of pseudo-ohmic overpotential leads to an unusual type of polarization behavior, whereby after reaching some current density range, the polarization of the aluminum-electrolyte interface alone, decreases with increasing current density in an approximately linear. It is the purpose of this short communication to report in more detail about this phenomenon which is tantamount to the appearance of negative equivalent resistance at the surface.",
publisher = "Elsevier",
journal = "Electrochimica Acta",
title = "Abnormal polarization change in anodic dissolution of aluminium at high current densities",
volume = "26",
number = "1",
pages = "173-177",
doi = "10.1016/0013-4686(81)80021-7"
}
Despić A, Dražić DM, Zečević SK, Atanasoski R. Abnormal polarization change in anodic dissolution of aluminium at high current densities. Electrochimica Acta. 1981;26(1):173-177
Despić, A., Dražić, D. M., Zečević, S. K.,& Atanasoski, R. (1981). Abnormal polarization change in anodic dissolution of aluminium at high current densities.
Electrochimica ActaElsevier., 26(1), 173-177.
https://doi.org/10.1016/0013-4686(81)80021-7
Despić Aleksandar, Dražić Dragutin M., Zečević Strahinja K., Atanasoski Radoslav, "Abnormal polarization change in anodic dissolution of aluminium at high current densities" 26, no. 1 (1981):173-177,
https://doi.org/10.1016/0013-4686(81)80021-7 .

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutionsAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB