Structural studies of disordered Mg2NiH4 formed by mechanical grinding

Ewa Rönnebro; Jens Oluf Jensen; Dag Noréus; Niels Bjerrum

doi:10.1016/S0925-8388(99)00315-1

Structural studies of disordered Mg₂NiH₄ formed by mechanical grinding

Ewa Rönnebro
, Jens Oluf Jensen
, Dag Noréus
, Niels Bjerrum

Department of Chemistry

Stockholm University

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

The low temperature phase of Mg2NiH4 was mechanically ground in argon atmosphere. The ordered monoclinic structure was destroyed to form the disordered cubic structure, previously only found above 510 K. With a Guinier-Hagg X-ray camera the cell parameter was determined to be a=6.492(3) Angstrom. By performing a Rietveld refinement on neutron diffraction data it was confirmed that the disordered structure is similar to the high temperature form of Mg2NiH4 (space group Fm3m). (C) 1999 Elsevier Science S.A. All rights reserved.

Original language	English
Journal	Journal of Alloys and Compounds
Volume	293-295
Pages (from-to)	146-149
ISSN	0925-8388
DOIs	https://doi.org/10.1016/S0925-8388(99)00315-1
Publication status	Published - 1999
Event	6th International Symposium on Metal-Hydrogen Systems: Fundamentals and Applications - Hangzhou, China Duration: 4 Oct 1998 → 9 Oct 1998 Conference number: 6

Conference

Conference	6th International Symposium on Metal-Hydrogen Systems
Number	6
Country/Territory	China
City	Hangzhou
Period	04/10/1998 → 09/10/1998

Keywords

Disordered Mg2NiH4
Mechanical grinding
Structural study

Access to Document

10.1016/S0925-8388(99)00315-1

OpenUrl availability

Check availability in DTU Findit

Cite this

@inproceedings{1578a268509c41afb4545858c73cebeb,

title = "Structural studies of disordered Mg2NiH4 formed by mechanical grinding",

abstract = "The low temperature phase of Mg2NiH4 was mechanically ground in argon atmosphere. The ordered monoclinic structure was destroyed to form the disordered cubic structure, previously only found above 510 K. With a Guinier-Hagg X-ray camera the cell parameter was determined to be a=6.492(3) Angstrom. By performing a Rietveld refinement on neutron diffraction data it was confirmed that the disordered structure is similar to the high temperature form of Mg2NiH4 (space group Fm3m). (C) 1999 Elsevier Science S.A. All rights reserved. ",

keywords = "Disordered Mg2NiH4, Mechanical grinding, Structural study",

author = "Ewa R{\"o}nnebro and Jensen, \{Jens Oluf\} and Dag Nor{\'e}us and Niels Bjerrum",

year = "1999",

doi = "10.1016/S0925-8388(99)00315-1",

language = "English",

volume = "293-295",

pages = "146--149",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier",

note = "6th International Symposium on Metal-Hydrogen Systems : Fundamentals and Applications, MH1998 ; Conference date: 04-10-1998 Through 09-10-1998",

}

TY - GEN

T1 - Structural studies of disordered Mg2NiH4 formed by mechanical grinding

AU - Rönnebro, Ewa

AU - Jensen, Jens Oluf

AU - Noréus, Dag

AU - Bjerrum, Niels

N1 - Conference code: 6

PY - 1999

Y1 - 1999

N2 - The low temperature phase of Mg2NiH4 was mechanically ground in argon atmosphere. The ordered monoclinic structure was destroyed to form the disordered cubic structure, previously only found above 510 K. With a Guinier-Hagg X-ray camera the cell parameter was determined to be a=6.492(3) Angstrom. By performing a Rietveld refinement on neutron diffraction data it was confirmed that the disordered structure is similar to the high temperature form of Mg2NiH4 (space group Fm3m). (C) 1999 Elsevier Science S.A. All rights reserved.

AB - The low temperature phase of Mg2NiH4 was mechanically ground in argon atmosphere. The ordered monoclinic structure was destroyed to form the disordered cubic structure, previously only found above 510 K. With a Guinier-Hagg X-ray camera the cell parameter was determined to be a=6.492(3) Angstrom. By performing a Rietveld refinement on neutron diffraction data it was confirmed that the disordered structure is similar to the high temperature form of Mg2NiH4 (space group Fm3m). (C) 1999 Elsevier Science S.A. All rights reserved.

KW - Disordered Mg2NiH4

KW - Mechanical grinding

KW - Structural study

U2 - 10.1016/S0925-8388(99)00315-1

DO - 10.1016/S0925-8388(99)00315-1

M3 - Conference article

SN - 0925-8388

VL - 293-295

SP - 146

EP - 149

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

T2 - 6th International Symposium on Metal-Hydrogen Systems

Y2 - 4 October 1998 through 9 October 1998

ER -