But without exposure to oxygen, lithium films could
retain deuterium at higher temperatures as a result of lithium - deuterium bonding during a PPPL experiment.
The experiments showed that the ability of ultrathin lithium films to
retain deuterium drops as the temperature of the molybdenum substrate rises — a result that provides insight into how lithium affects the performance of tokamaks.
Among the puzzles is how temperature affects the ability of lithium to absorb and
retain the deuterium particles that stray from the fuel that creates fusion reactions.
But without exposure to oxygen, the researchers found, lithium films could
retain deuterium at higher temperatures as a result of lithium - deuterium bonding.