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Updated: May 13, 2026

Electrochemical Detection of Deuterium Kinetic Isotope Effect on Extracellular Electron Transport in Shewanella oneidensis MR-1
Published on: April 16, 2018
Deuterium uptake in magnetic-fusion devices with lithium-conditioned carbon walls
P S Krstic1, J P Allain, C N Taylor
1Joint Institute of Computational Sciences, University of Tennessee, Knoxville, Tennessee 37996-3460, USA.
Abstract:
Lithium wall conditioning has lowered hydrogenic recycling and dramatically improved plasma performance in many magnetic-fusion devices. In this Letter, we report quantum-classical atomistic simulations and laboratory experiments that elucidate the roles of lithium and oxygen in the uptake of hydrogen in amorphous carbon. Surprisingly, we show that lithium creates a high oxygen concentration on a carbon surface when bombarded by deuterium. Furthermore, surface oxygen, rather than lithium, plays the key role in trapping hydrogen.
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