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SUMMARY:Electrochemistry in the molten state: from sustainable metal extra
 ction to materials fundamentals - Antoine Allanore\, MIT
DTSTART:20180618T120000Z
DTEND:20180618T130000Z
UID:TALK106786@talks.cam.ac.uk
CONTACT:Katie Daehn
DESCRIPTION:Metals and metallurgy played a foundational role in the materi
 als science we learn today\, in particular to demonstrate how condensed ma
 tter physics allows the prediction of solid-state properties. Similar pred
 ictive capacity is lacking for the molten state\, and liquid metals and mo
 lten oxide or sulfide are again remarkable candidates to progress in that 
 endeavor.\nIndependently of this conceptual lanscape\, metals remain at th
 e basis of modern society and their affordable and environmentally respect
 able extraction and recycling is required. In the context of 9 billion peo
 ple by 2050 and issues such as greenhouse gas emissions\, my research grou
 p aims at developing alternative approaches for metals extraction and proc
 essing. The electrochemistry of the molten state is an integral part of ou
 r endeavor\, compatible with the deployment of sustainable electric power 
 generation [1]. This seminar offers to report electrochemical studies of a
  subset of molten oxide [2\,3] and sulfide [4] systems. Our results show t
 hat the molten state offers unique functionalities (enhanced mass transpor
 t\, high conductivity\, electronic conductivity\, thermoelectric power) an
 d that electrochemistry is uniquely positioned to probe the structure and 
 physical chemistry of those systems. In addition\, our results provide val
 uable thermodynamic information\, and our experimental developments sugges
 t a faster path to experimental data\, along with an improvement in the pr
 ediction and modeling capacity of the molten state.\n\n[1] A. Allanore\, C
 ontribution of Electricity to Materials Processing: Historical and Current
  Perspectives\, JOM\, 65(2)\, 131\, (2013)\n\n[2] A. Allanore\, Features a
 nd Challenges of Molten Oxide Electrolytes for Metal Extraction\, Journal 
 of the Electrochemical Society\, 162(1)\, 13-22\, (2015)\n\n[3] A. Allanor
 e\, L. Yin & D. R. Sadoway\, A New Anode Material for Oxygen Evolution in 
 Molten Oxide Electrolysis. Nature\, 497(7449)\, 353–356\, (2013)\n\n[4] 
 S. Sokhanvaran\, S.-K. Lee\, G. Lambotte & A. Allanore\, Electrochemistry 
 of Molten Sulfides: Copper Extraction from BaS-Cu2S. Journal of The Electr
 ochemical Society\, 163(3)\, 115–120\, (2016)\n
LOCATION: Cambridge University Engineering Department\, JDB Seminar Room
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