The Electrochemistry of Nickel. 2. Anodic Polarization of Nickel

Abstract

The anodic dissolution of Ni was studied in acidified chloride, sulfate, and perchlorate solutions under a variety of non-passivating conditions. The Tafel slopes at 45 deg C are approximately 0.085, 0.115, 0.12, respectively. The lower value of the Tafel slope in chloride solutions is attributed to specific adsorption. The potential of the Ni anode is independent of Ni(++) concentration under conditions for which the back reaction is negligible and no pH dependence has been found for pH of 1 to 2.5. The temperature dependence of the polarization yields an approximate value of 15 kcal/mole for the heat of activation in the chloride solution.

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Document Details

Document Type
Technical Report
Publication Date
Oct 15, 1962
Accession Number
AD0289213

Entities

People

  • E. Yeager
  • F. Hovorka
  • J. C. Banter
  • M. L. Kronenberg

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Anodic Polarization
  • Chemistry
  • Current Density
  • Electrochemistry
  • Electrodeposition
  • Electrodes
  • Electrolysis
  • Energy
  • Heat Of Activation
  • Measurement
  • Military Research
  • New York
  • Oscilloscopes
  • Polarization
  • Surface Roughness
  • Universities

Readers

  • Analytical Chemistry
  • Materials Science and Engineering.
  • Surface Coatings Technology.