Role of the electrolyte in cathodic lead dioxide reduction
The electrolyte composition and particularly the anions are thought to be important in cathodic lead dioxide reduction. Data are reported for the process in 0.1 M Na/sub 2/B/sub 4/O/sub 7/, Na/sub 2/HPO/sub 4/, KOH, and KC1 solution and in 0.3 M K/sub 2/SO/sub 4/ solution. Deposits of alpha-PbO/sub 2/ were produced electrolytically on nickel. The potentials are reported on the hydrogen scale. The electrochemical behavior of lead dioxide in said solutions was evaluated from charging curves and from potentiodynamic curves obtained with a P-5848 potentiostat. The first stage of lead dioxide reduction in all solutions results in the formation of an intermediate oxide having the composition of PbO/sub 1/ /sub 43/ to PbO/sub 1/ /sub 24/. The second stage (reduction of the intermediate oxide to metallic lead) depends on the nature of the electrolyte. An examination of the results obtained action of lead dioxide with the electrophilic component increases in the order of KOH yields KC1 yields Na/sub 2/B/sub 4/O/sub 7/ yields Na/sub 2/HPO/sub 4/ yields K/sub 2/SO/sub 4/.
- Research Organization:
- Institute of Physical Chemistry, Academy of Sciences of the USSR, Moscow
- OSTI ID:
- 5160716
- Journal Information:
- Sov. Electrochem. (Engl. Transl.); (United States), Vol. 21:3
- Country of Publication:
- United States
- Language:
- English
Similar Records
Corrosion Behavior of Titanium Grade 7 in Fluoride-Containing NaCl Brines
Applied battery and electrochemical research program report for fiscal year 1980
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ELECTROLYTES
CHEMICAL COMPOSITION
LEAD OXIDES
ELECTROCHEMISTRY
REDUCTION
BORAX
CHEMICAL REACTION KINETICS
COMPARATIVE EVALUATIONS
ELECTRIC POTENTIAL
ELECTRODEPOSITION
HYPOPHOSPHOROUS ACID
POTASSIUM CHLORIDES
POTASSIUM HYDROXIDES
POTASSIUM SULFATES
POTENTIOMETRY
SODIUM COMPOUNDS
ALKALI METAL COMPOUNDS
BORATES
BORON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DEPOSITION
ELECTROLYSIS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC ACIDS
KINETICS
LEAD COMPOUNDS
LYSIS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
REACTION KINETICS
SULFATES
SULFUR COMPOUNDS
SURFACE COATING
TITRATION
400400* - Electrochemistry