Features and Challenges of Molten Oxide Electrolytes for Metal Extraction
Name
Allanore_Features and challenges.pdf
Size
1011.34 KB
Format
Adobe PDF
Checksum (MD5)
3429a4fa1c0f6b190e8e5c2592aeb82c
Author(s)
Allanore, Antoine
Date Issued
November 2014
Journal
Journal of the Electrochemical Society
Publisher
Electrochemical Society
Citation
Allanore, A. “Features and Challenges of Molten Oxide Electrolytes for Metal Extraction.” Journal of the Electrochemical Society 162, no. 1 (November 25, 2014): E13–E22.
Version
Final published version
Abstract
The electrolytic decomposition of metal oxides to metal and oxygen is an extractive metallurgy principle that, when coupled with carbon-free electricity, drastically mitigates the global warming impact of metal production. The present perspective discusses the electrochemical engineering features of an unconventional electrolyte, molten oxides. A survey of its thermodynamic properties suggests exceptional features, both in terms of applicability to multiple metals and operation at high temperature to produce liquid metal. The review of molten oxides’ transport properties indicates that an unprecedented throughput can be envisioned, a promising feature for tonnage production. However, our ability to define the optimal electrolyte composition with regard to energy consumption is rendered limited due to the lack of predictive tools for both of the reviewed properties. A look at the state of the art in electrode materials reveals that quantitative design criteria remain to be developed for both the cathode and the anode. Finally, the applications of electrochemistry in molten oxides are reviewed; thereby confirming most of the anticipated theoretical features.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1149/2.0451501jes
