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101934 |
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|a Allanore, Antoine
|e author
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|a Massachusetts Institute of Technology. Department of Materials Science and Engineering
|e contributor
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|a Allanore, Antoine
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|a Allanore, Antoine
|e contributor
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|a Electrochemical engineering of anodic oxygen evolution in molten oxides
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|b Elsevier,
|c 2016-03-30T16:29:06Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/101934
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|a Molten oxide electrolysis (MOE) is a metal extraction process that exhibits an exceptionally high productivity in comparison with other electrowinning techniques. Furthermore, MOE has the ability to generate oxygen as an environmentally benign byproduct, which is a key asset to improve metal extraction sustainability. From an electrochemical engineering standpoint, the high concentration of metal cations dissolved in the electrolyte justifies cathode current densities above 10,000 A m[superscript −2]. At the anode, the available data suggest a mechanism of oxidation of the free oxide anions which concentration in oxide melts is reported to be limited. In this context, the application of available mass-transfer correlations for the anodic oxygen evolution suggests a key role of convection induced by gas bubbles evolution.
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|a en_US
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|a Article
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|t Electrochimica Acta
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