Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-27T18:47:17.732Z Has data issue: false hasContentIssue false
  • English
  • Français

Crystal Structure and Hydrogen Storage Properties of novel Mg-Zr-(Li, Na, K) Hydrides Prepared by Gigapascal Hydrogen Pressure Method

Published online by Cambridge University Press:  25 October 2011

Nobuhiko Takeichi ,
Kenji Shida ,
Xiao Yang  and
Tetsuo Sakai
Nobuhiko Takeichi
Affiliation:
National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
Kenji Shida
Affiliation:
National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
Xiao Yang
Affiliation:
National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
Tetsuo Sakai
Affiliation:
National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
Get access

Abstract

Novel Mg-Zr-A (A=Na, Li and K) hydrides have been synthesized by the gigapascal hydrogen pressure method. Their crystal structures were analyzed based on synchrotron X-ray diffraction (XRD) patterns. In the Mg-Zr-H system, the Mg-Zr hydride with FCC structure was formed under 8 GPa and 873 K. In the case of Mg-Zr-Li and Mg-Zr-K systems, the quaternary hydrides were formed and these retained the same crystal structure, FCC structure, up to x = 1.0 While in the Mg-Zr-Na system, the quaternary hydrides were formed and these retained the FCC structure, up to x = 0.3. With the addition of 0.5 NaH, a hydride with the Ca7Ge type structure was formed instead of the FCC structure. The Mg-Zr-(Li, Na, K) hydrides can reversibly absorb and desorb hydrogen. The hydrogen desorption temperatures of those hydrides decrease with the increasing ionic radius of the alkali metal.

Keywords

x-ray diffraction (XRD)Mghydrogenation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1334: Symposium N – Recent Developments in Materials for Hydrogen Storage and Carbon-Capture Technologies , 2011 , mrss11-1334-n03-24
Copyright
Copyright © Materials Research Society 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Stampfer, J. F. Jr., Holley, C. E. Jr., and Suttle, J. F., J. Am. Chem. Soc. 82, 3504 (1960).Google Scholar
2. Orimo, S., Fujii, H., and Ikeda, K., Acta Mater. 45, 331 (1998).Google Scholar
3. Liang, G., Huot, J., Boily, S., and Schulz, R., J. Alloy. Compd. 305, 239 (2000).Google Scholar
4. Goto, Y., Kamegawa, A., Takamura, H. and Okada, M., Mater. Trans. 43 2717 (2002).Google Scholar
5. Takamura, H., Kakuta, H., Kamegawa, A. and Okada, M., J. Alloys. Compd. 330 157 (2002).Google Scholar
6. Kyoi, D., Sato, T., Ronnebro, E., Kitamura, N., Ueda, A., Ito, M., Katsuyama, S., Hara, S., Noreus, D. and Sakai, T., J. Alloys Comp. 372 213 (2004).Google Scholar
7. Ronnebro, E., Kyoi, D., Kitano, A. and Sakai, T., J. Alloys Comp. 404/406 68 (2005)Google Scholar
8. Kyoi, D., Sato, T., Ronnebro, E., Tsuji, Y., Kitamura, N., Ueda, A., Ito, M., Katsuyama, S., Hara, S., Noreus, D. and Sakai, T., J. Alloys Comp. 375 253 (2004).Google Scholar
9. Kyoi, D., Kitamura, N., Tanaka, H., Ueda, A., Tanase, S. and Sakai, T., J. Alloys Comp. 428 268 (2007).Google Scholar
10. Sato, T., Kyoi, D., Ronnebro, E., Kitamura, N., sakai, T. and Noreus, D., J. Alloys Comp. 417 230 (2006).Google Scholar
11. Kyoi, D., Sakai, T., Kitamura, N. and Tanase, S., J. Alloys Comp. 463 306 (2008).Google Scholar
12. Kyoi, D., Sakai, T., Kitamura, N., Ueda, A. and Tanase, S., J. Alloys Comp. 463 311 (2008).10.1016/j.jallcom.2007.09.004Google Scholar
13. Takasaki, T., Kyoi, D., Kitamura, N., Tanase, S. and Sakai, T., J. Phys. Chem. B 111 14102 (2007).10.1021/jp074395lGoogle Scholar
14. Takasaki, T., Mukai, T., Kitamura, N., Tanase, S. and Sakai, T., J. Alloys Comp. 494 439 (2010).Google Scholar
15. Kyoi, D., Ronnebro, E., Kitamura, N., Ueda, A., Ito, M., Katsuyama, S., Hara, S. and Sakai, T., J. Alloys Comp. 361 252 (2003).10.1016/S0925-8388(03)00431-6Google Scholar
16. Izumi, F., Ikeda, T, Mater. Sci. Forum, 321–324 198 (2000).Google Scholar
17. Norotaka, T., Aoko, M., Towata, S., Seno, Y., Hirose, Y., Nishihori, E., Takata, M. and Sakata, M., Appl. Phys. Lett. 81 2008 (2002).Google Scholar