Dehydriding and rehydriding properties of yttrium borohydride Y(BH4)3 prepared by liquid-phase synthesis

Yigang Yan, Hai Wen Li, Toyoto Sato, Naoyashi Umeda, Kazutoshi Miwa, Shin ichi Towata, Shin ichi Orimo

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Y(BH4)3 was prepared by liquid-phase synthesis, and its dehydriding and rehydriding properties were systematically investigated by performing thermogravimetry and differential thermal analysis (TG-DTA) and powder X-ray diffraction (XRD) measurement. The dehydriding reaction of Y(BH4)3 starts at appropriately 460 K, and a total of 7.8 wt% of hydrogen is released up to 773 K. Phase transformation and melting are observed in Y(BH4)3 at approximately 474 K and 499 K, respectively. Both DTA and XRD measurement results indicate that the decomposition of Y(BH4)3 proceeds via multistep dehydriding reactions accompanied with the formation of an intermediate phase. Furthermore, Y(BH4)3 is proved to be partially rehydrided.

Original languageEnglish
Pages (from-to)5732-5736
Number of pages5
JournalInternational Journal of Hydrogen Energy
Volume34
Issue number14
DOIs
Publication statusPublished - Jul 1 2009
Externally publishedYes

Fingerprint

borohydrides
Yttrium
yttrium
Differential thermal analysis
thermal analysis
liquid phases
Liquids
synthesis
thermogravimetry
diffraction
X ray powder diffraction
phase transformations
Thermogravimetric analysis
Melting
x rays
Phase transitions
melting
Decomposition
decomposition
X ray diffraction

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Dehydriding and rehydriding properties of yttrium borohydride Y(BH4)3 prepared by liquid-phase synthesis. / Yan, Yigang; Li, Hai Wen; Sato, Toyoto; Umeda, Naoyashi; Miwa, Kazutoshi; Towata, Shin ichi; Orimo, Shin ichi.

In: International Journal of Hydrogen Energy, Vol. 34, No. 14, 01.07.2009, p. 5732-5736.

Research output: Contribution to journalArticle

Yan, Yigang ; Li, Hai Wen ; Sato, Toyoto ; Umeda, Naoyashi ; Miwa, Kazutoshi ; Towata, Shin ichi ; Orimo, Shin ichi. / Dehydriding and rehydriding properties of yttrium borohydride Y(BH4)3 prepared by liquid-phase synthesis. In: International Journal of Hydrogen Energy. 2009 ; Vol. 34, No. 14. pp. 5732-5736.
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AU - Miwa, Kazutoshi

AU - Towata, Shin ichi

AU - Orimo, Shin ichi

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