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

46 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 - 2009 Jul
Externally published	Yes

Keywords

Borohydride
Complex hydride
Hydrogen
Hydrogen storage
Transition metal

ASJC Scopus subject areas

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

Access to Document

10.1016/j.ijhydene.2009.05.097

Cite this

@article{dc2d3dc3d3ee4d529220a1035e14626e,

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

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.",

keywords = "Borohydride, Complex hydride, Hydrogen, Hydrogen storage, Transition metal",

author = "Yigang Yan and Li, {Hai Wen} and Toyoto Sato and Naoyashi Umeda and Kazutoshi Miwa and Towata, {Shin ichi} and Orimo, {Shin ichi}",

note = "Funding Information: The authors would like to sincerely thank Drs. M. Aoki, M. Matsumoto and Mr. T. Noritake for their valuable discussion. This study was partially supported by NEDO, {\textquoteleft}Development for Hydrogen Production, Transportation and Storage System{\textquoteright} Project, Global COE program (Materials Integrations, Tohoku University), and KAKENHI (20760462).",

year = "2009",

month = jul,

doi = "10.1016/j.ijhydene.2009.05.097",

language = "English",

volume = "34",

pages = "5732--5736",

journal = "International Journal of Hydrogen Energy",

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AU - Yan, Yigang

AU - Li, Hai Wen

AU - Sato, Toyoto

AU - Umeda, Naoyashi

AU - Miwa, Kazutoshi

AU - Towata, Shin ichi

AU - Orimo, Shin ichi

N1 - Funding Information: The authors would like to sincerely thank Drs. M. Aoki, M. Matsumoto and Mr. T. Noritake for their valuable discussion. This study was partially supported by NEDO, ‘Development for Hydrogen Production, Transportation and Storage System’ Project, Global COE program (Materials Integrations, Tohoku University), and KAKENHI (20760462).

PY - 2009/7

Y1 - 2009/7

N2 - 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.

AB - 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.

KW - Borohydride

KW - Complex hydride

KW - Hydrogen

KW - Hydrogen storage

KW - Transition metal

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