Crystal structure, polymorphism, and thermal properties of yttrium borohydride Y(BH4)3

Frommen, Christoph; Aliouane, N.; Deledda, Stefano; Fonneløp, Jon Erling; Grove, Hilde; Lieutenant, K.; Llamas‐Jansa, Isabel; Sartori, Sabrina; Sørby, Magnus H.; Hauback, Bjørn C.

doi:10.1016/j.jallcom.2010.02.180

Cited by 79 publications

(109 citation statements)

References 47 publications

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“…Metathesis, or a double substitution reaction, is a well-known mechanism for chemical reactions during ball milling, here illustrated by a reaction in the system, YCl 3 -LiBH 4 (1:3), which results in the formation of Y(BH 4 ) 3 and LiCl, according to Eq. 1 [10][11][12][13][14].…”

Section: Synthesis Of Novel Borohydridesmentioning

confidence: 99%

Complex and liquid hydrides for energy storage

et al. 2016

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The research on complex hydrides for hydrogen storage was initiated by the discovery of Ti as a hydrogen sorption catalyst in NaAlH 4 by Boris Bogdanovic in 1996. A large number of new complex hydride materials in various forms and combinations have been synthesized and characterized, and the knowledge regarding the properties of complex hydrides and the synthesis methods has grown enormously since then. A significant portion of the research groups active in the field of complex hydrides is collaborators in the International Energy Agreement Task 32. This paper reports about the important issues in the field of complex hydride research, i.e. the synthesis of borohydrides, the thermodynamics of complex hydrides, the effects of size and confinement, the hydrogen sorption mechanism and the complex hydride composites as well as the properties of liquid complex hydrides. This paper is the result of the collaboration of several groups and is an excellent summary of the recent achievements.

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Section: Synthesis Of Novel Borohydridesmentioning

confidence: 99%

Complex and liquid hydrides for energy storage

et al. 2016

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“…However, it requires very tough conditions for rehydrogenation [3] and suffers from capacity loss on cycling due to the formation of higher boranes [4]. Another class of materials to be considered is rare earth (RE) borohydrides, with hydrogen capacities varying between 9.0 wt % for Y(BH 4 ) 3 and 5.5 wt % for Yb(BH 4 ) 3 [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Li-containing RE borohydrides are also considered as solid state electrolytes for new battery applications, due to their high Li-ion conductivities [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Sorption in Erbium Borohydride Composite Mixtures with LiBH4 and/or LiH

et al. 2017

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Rare earth (RE) metal borohydrides have recently been receiving attention as possible hydrogen storage materials and solid-state Li-ion conductors. In this paper, the decomposition and reabsorption of Er(BH 4 ) 3 in composite mixtures with LiBH 4 and/or LiH were investigated. The composite of 3LiBH 4 + Er(BH 4 ) 3 + 3LiH has a theoretical hydrogen storage capacity of 9 wt %, nevertheless, only 6 wt % hydrogen are accessible due to the formation of thermally stable LiH. Hydrogen sorption measurements in a Sieverts-type apparatus revealed that during three desorption-absorption cycles of 3LiBH 4 + Er(BH 4 ) 3 + 3LiH, the composite desorbed 4.2, 3.7 and 3.5 wt % H for the first, second and third cycle, respectively, and thus showed good rehydrogenation behavior. In situ synchrotron radiation powder X-ray diffraction (SR-PXD) after ball milling of Er(BH 4 ) 3 + 6LiH resulted in the formation of LiBH 4 , revealing that metathesis reactions occurred during milling in these systems. Impedance spectroscopy of absorbed Er(BH 4 ) 3 + 6LiH showed an exceptional high hysteresis of 40-60 K for the transition between the high and low temperature phases of LiBH 4 , indicating that the high temperature phase of LiBH 4 is stabilized in the composite.

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“…Rare earth (RE) borohydrides have received considerable attention during the past 5 years due to their rich crystal chemistry [1][2][3][4][5][6][7] and potential as both solid state hydrogen storage materials [8][9][10][11][12][13][14][15] and solid state electrolytes [16][17][18]. Special interest has been directed lately towards the development of easy and facile synthesis routes for solvent-free borohydrides [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…The RE-borohydrides obtained by mechanochemical synthesis decompose between 200 and 300 o C [5,6,11,12,16,17], which is considerably lower than pure LiBH 4 [23]. With the exception of Yb-based compounds [3], they release primarily hydrogen and form RE-hydrides and borides as the major decomposition products.…”

Section: Introductionmentioning

confidence: 99%