Production of Fission Product Xenon

Oi, Noboru; Nagao, Hiroyuki

doi:10.3327/jnst.4.254

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2lithiumisotope Effects1

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2002

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“…Quantitativee stimation of the RPFR valuesis still difficultbecausenovibrationalmode of lithium speciesin the graphite-1-methoxybutane system isreported.Molecularorbitalcalculationsmaybee ffectivetosuchsystemsthatlackinvibrationalinformation [18,19], and wehavealreadystarted amolecular orbitalstudyalongthatline.…”

Section: 2lithiumisotope Effectsmentioning

confidence: 99%

Lithium Isotope Effect Accompanying Chemical Insertion of Lithium into Graphite

Hashikawa

Yanase

2002

Zeitschrift Für Naturforschung A

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Lithiumwaschemicallyintercalated from 1-methoxybutane solutionoflithiumand naphthalene intog raphiteand viceversa ,a nd lithiumi sotope fractionationaccompanyingthosei ntercalation and deintercalationp rocessesw asobserved.6 Liwasalways preferentiallyfractionated intothe graphitep hase. The single-stage lithiumi sotope separationf actoru pon intercalationwasabout 1.023 at25 C, nearlyindependentof the structureofthe lithium-graphiteintercalationcompounds formed. Amuchsmallerseparationfactorwasobserved forthe deintercalationprocess,suggesting the existenceo fl ithiumsites(surfaceareas)o thert hanthe sitesbetween graphene layers of the host graphite. Separationf actordatawereconsistentw iththe followingd ecreasingo rderof the 6 Li-to-7 Lireduced partitionf unctionratio (RPFR):R PFR of 1-methoxybutane solution>RPFR of surfaceareas>RPFR of metallithium>RPFR of graphene interlayersites.

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Section: 2lithiumisotope Effectsmentioning

confidence: 99%