Inverse isotope effect of ZrMnx (x=1.9 or 2.0)-Q2 (Q=H or D) system

Masanori Hara*, Takafumi Yamamoto, Katsuhiko Nishimura, Satoshi Akamaru, Kuniaki Watanabe, Masao Matsuyama

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Pressure-composition curves of ZrMnx (x=1.9, 2.0)-Q2 (Q=H, D) were measured by a volumetric method. An inverse isotope effect of absorption pressure was found for the ZrMnxQy system, i.e. the hydrogen absorption pressure was found to be larger than that of deuterium. On the other hand, the hydrogen desorption pressure was the same as that of deuterium. Thus, an inverse isotope effect merely appears in the absorption pressures. The degree of the inverse isotope effect decreased with increasing temperature. This effect can be explained by the hysteresis factor which is induced by hydrogen isotopes dissolved in ZrMn1.9 or ZrMn 2.0.

Original languageEnglish
Pages (from-to)1174-1178
Number of pages5
JournalJournal of Physics and Chemistry of Solids
Volume74
Issue number8
DOIs
StatePublished - 2013/08

Keywords

  • Absorption/desorption isotherms
  • Hysteresis factor
  • Inverse isotope effect
  • ZrMn

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Inverse isotope effect of ZrMnx (x=1.9 or 2.0)-Q2 (Q=H or D) system'. Together they form a unique fingerprint.

Cite this