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

doi:10.1016/j.ijhydene.2009.05.097

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 journal › Article › peer-review

42 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 language	English
Pages (from-to)	5732-5736
Number of pages	5
Journal	International Journal of Hydrogen Energy
Volume	34
Issue number	14
DOIs	https://doi.org/10.1016/j.ijhydene.2009.05.097
Publication status	Published - Jul 1 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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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 journal › Article › peer-review

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AU - Miwa, Kazutoshi

AU - Towata, Shin ichi

AU - Orimo, Shin ichi

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