Electrochemical reactions in a pure Na2SO4 melt
Journal Article
·
· J. Electrochem. Soc.; (United States)
Cyclic voltammetry and chronopotentiometry were used to study the electrochemical reduction reactions of SO3 gas O2 and SO4S ions in a Na2SO4 melt at 900C. The reduction reaction of SO3 follows a ce mechanism: SO3 first reacts chemically with SO4S to form S2O7S and then proceeds via a one-electron electrochemical reduction reaction to form SO3 . The reduction of peroxide O2 ions forms either OS or both OS and superoxide O2S ions. Sulfate ions are subjected to decomposition at either very positive or very negative potentials. At very high positive potentials, sulfate ions decompose to evolve SO2 and O2 gases, in addition superoxide ions are also formed. At very negative potentials, sulfate ions decompose to form sulfide and peroxide. 24 references, 11 figures, 2 tables.
- Research Organization:
- Ohio State Univ., Columbus
- OSTI ID:
- 6052271
- Journal Information:
- J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 130:12; ISSN JESOA
- Country of Publication:
- United States
- Language:
- English
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