DFT based screening of ternary alkali-transition metal borohydrides : a computational materials design project
Abstract
We present a computational screening study of ternary metal borohydrides for reversible hydrogen storage based on density functional theory. We investigate the stability and decomposition of alloys containing 1 alkali metal atom, Li, Na, or K (M1); and 1 alkali, alkaline earth or 3d/4d transition metal atom (M2) plus two to five (BH4) − groups, i.e., M1M2(BH4)2–5, using a number of model structures with trigonal, tetrahedral, octahedral, and free coordination of the metal borohydride complexes. Of the over 700 investigated structures, about 20 were predicted to form potentially
stable alloys with promising decomposition energies. The M1(Al/Mn/Fe)(BH4)4, (Li/Na)Zn(BH4)3, and (Na/K)(Ni/Co)(BH4)3 alloys are found to be the most promising, followed by selected M1(Nb/Rh)(BH4)4 alloys.
Main Authors
Format
Articles
Research article
Published
2009
Series
Subjects
Publication in research information system
Publisher
American Institute of Physics
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202410166333Use this for linking
Review status
Peer reviewed
ISSN
0021-9606
DOI
https://doi.org/10.1063/1.3148892
Language
English
Published in
Journal of Chemical Physics
Citation
- Hummelshøj, J. S., Landis, D.D., Voss, J., Jiang, T., Tekin, A., Bork, N., Dułak, M., Mortensen, J.J., Adamska, L., Andersin, J., Baran, J. D., Barmparis, G. D., Bell, F., Bezanilla, A. L., Bjork, J., Björketun, M. E., Bleken, F., Buchter, F., Bürkle, M., . . . Vegge, T. (2009). DFT based screening of ternary alkali-transition metal borohydrides : a computational materials design project. Journal of Chemical Physics, 131(1), Article 014101. https://doi.org/10.1063/1.3148892
Additional information about funding
The authors acknowledge financial support by the European Commission DG Research (Contract No. SES6-2006-
51827/NESSHy), the Nordic Energy Research Council (Contract No. 06-HYDRO-C15) and the Danish Center for
Scientific Computing (DCSC) for computer time (Grant No. HDW-1103-06).
Copyright© 2009 American Institute of Physics