Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    The electrocrystallization mechanisms and kinetics of copper onto glassy carbon

    Access Status
    Fulltext not available
    Authors
    Tadesse, Bogale
    Addai-Mensah, J.
    Fornasiero, D.
    Follink, B.
    Horne, M.
    Ralston, J.
    Date
    2012
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Tadesse, B. and Addai-Mensah, J. and Fornasiero, D. and Follink, B. and Horne, M. and Ralston, J. 2012. The electrocrystallization mechanisms and kinetics of copper onto glassy carbon, CHEMECA 2012, pp. 633-642.
    Source Title
    Barton, A.C.T.: Engineers Australia
    Source Conference
    CHEMECA 2012
    School
    Dept of Mining Eng & Metallurgical Eng
    URI
    http://hdl.handle.net/20.500.11937/57992
    Collection
    • Curtin Research Publications
    Abstract

    The nucleation and growth process of crystalline phases by electrocrystallization is of significant interests due to its application in producing thin films of metals and oxides for the fabrication of alloys, integrated circuits and magnetic recording devices with high degree of selectivity and precision. The attractiveness of electrocrystallization emerges from the fact that uniform, thin or multilayer films of various physicochemical properties may be achieved by tuning primary variables such as current density (applied potential), bath composition and temperature. To date, there is a dearth of understanding of the fundamental electrocrystallization mechanisms and kinetics and their links with the structure and properties of thin films (e.g., grain size, morphology, resistivity, hardness and corrosion). The main objective of the present work is to investigate the effect of electrolyte concentration on the mechanisms and kinetics of electrocrystallization and morphology of copper onto glassy carbon electrode. Cyclic voltametric and chronoamperometric results indicated that at lower electrolyte concentrations (5 10-4 - 10-3 M), a 2D, lattice incorporation-limited growth mechanism prevails, resulting in monolayer coverage deposition. At higher electrolyte concentrations (10-2 -10-1 M), a 3D growth mechanism under both charge transfer and volume diffusion limitations was observed. An Atomic Force Microscopy study of the deposit revealed a laterally spread small nuclei at lower concentrations and an island growth at higher concentrations, in agreement with the electrochemical findings.

    Related items

    Showing items related by title, author, creator and subject.

    • Tuning the Electrocrystallization Parameters of Semiconducting Co[TCNQ]2-Based Materials To Yield either Single Nanowires or Crystalline Thin Films
      Nafady, A.; Bond, A.; Bilyk, A.; Harris, A.; Bhatt, A.; O'Mullane, A.; De Marco, Roland (2007)
      Abstract:Electrocrystallization of single nanowires and/or crystalline thin films of the semiconducting and magnetic Co[TCNQ]2(H2O)2 (TCNQ = tetracyanoquinodimethane) charge-transfer complex onto glassy carbon, indium tin ...
    • Solubility and crystal growth of sodium nitrate from mixed alcohol – water solvents
      Rossiter, Angelina Jane (2009)
      Due to the ductile nature of the sodium nitrate crystal which deforms plastically under high levels of strain, most of the crystal growth studies in aqueous solution have focussed on the influence of tensile strain, ...
    • Mechanims of lactose crystallisation
      Dincer, Tuna (2000)
      Lactose is the major carbohydrate in milk. The presence of lactose in whey constitutes a significant pollution problem for dairy factories. At the same time, there is an increasing market for high quality crystalline ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.