Electrochemical oxidation of pyrite in pH 2 electrolyte
Electrochimica Acta(2017)
Abstract
•Electrochemical oxidation of pyrite occurred by two reaction pathways.•At potential of 0.50V, electrochemical oxidation of pyrite was diffusion-limited.•At potential of 0.60V, amorphous S8 was slowly converted to crystalline S8.•S8 was difficult to be oxidized electrochemically even at high potential.•Oxidation of pyrite was inhomogeneous on electrode surface.
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Key words
Pyrite,Electrochemical oxidation,Electrochemical technique,Surface analysis technique
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