THE EFFECTS OF ANIONS AND CATIONS ON OXYGEN REDUCTION AND EVOLUTION REACTIONS ON PLATINUM ELECTRODES

Abstract

The effects of 0.0010 to 1.0 M of various anions and cations added to 1 N H2SO4 and 1 M NaOH solutions on oxygen-reduction at pre-anodized and precathodized platinum electrodes were examined by measuring the coulombic efficiency for the formation of hydrogen peroxide. Current potential curves were also obtained. Results are discussed on the basis of the adsorption of cations and anions on the oxide or hydroxide covered electrode surfaces with emphasis on the ion exchange properties of the oxides. Evidence for various oxide films and/ or adsorbed oxygen on platinum electrodes is summarized. A voltammetric study of a special oxide layer formed on an excessively anodized platinum electrode is also described.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1964
Accession Number
AD0603221

Entities

People

  • Akiya Kozawa

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • C4I

DTIC Thesaurus Topics

  • Alkaline Earth Metals
  • Anodizing
  • Aqueous Solutions
  • Current Density
  • Decomposition
  • Electrochemical Reactions
  • Electrochemistry
  • Electrodes
  • Electrolysis
  • Ion Exchange
  • Materials
  • Metal Oxides
  • Metals
  • Oxidation
  • Oxide Films
  • Oxides
  • Rocket Oxidizers

Fields of Study

  • Chemistry
  • Materials science

Readers

  • Electrochemical Surface Science
  • Organic Chemistry
  • Surface Coatings Technology.