Synthesis and structural investigation of metal hydride, Y(Mn 1-xFex)2Hy (x ≤ 0.3, 4.0 ≤ y ≤ 4.5) and complex hydride, Y(Mn1-xFex) 2H6

Mika Kano, Takashi Ito, Motoaki Matsuo, Shigeyuki Takagi, Satoshi Semboshi, Shin Ichi Orimo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

It has been reported that the metal hydride, YMn2Hy (y ≤ 4.5), wherein the hydrogen atoms are located into the interstitial sites, transformed into a complex hydride, YMn2H6, containing complex anions, [MnH6]5-. We investigated the possibility of synthesizing the complex hydride, Y(Mn1-xFe x)2H6 (x ≤ 0.3), where Mn atoms were partially substituted by Fe. As a result, the transformation into the complex hydride, Y(Mn1-xFex)2H6, was successfully realized for x ≤ 0.10 upon the hydrogenation of the metal hydride, Y(Mn1-xFex)2Hy (y = 4.4 and 4.5), under 50 MPa H2, much lower than the previously reported value of 1 GPa. Our structural investigation suggested that the Fe substitution in Y(Mn1-xFex)2H6 (x ≤ 0.10) resulted in the form of complex anions, i.e., [MnH6]5- were partially substituted by [FeH6]4-.

Original languageEnglish
Title of host publicationMaterials Integration
PublisherTrans Tech Publications Ltd
Pages310-314
Number of pages5
ISBN (Print)9783037853764
DOIs
Publication statusPublished - 2012
EventInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011 - Sendai, Japan
Duration: 2011 Dec 12011 Dec 2

Publication series

NameKey Engineering Materials
Volume508
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

OtherInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011
Country/TerritoryJapan
CitySendai
Period11/12/111/12/2

Keywords

  • Complex anion
  • Complex hydride
  • Hydrogen
  • Metal hydride
  • Partial substitution
  • Structural investigation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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