Reversible hydriding and dehydriding reactions of perovskite-type hydride NaMgH3

Ikeda, Kazutaka; Kogure, Yumi; Nakamori, Yoshiteru; Orimo, Shin Ichi

doi:10.1016/j.scriptamat.2005.04.010

Cited by 69 publications

(58 citation statements)

References 18 publications

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“…The Goldschmidt tolerance factors range from t = 0.9-1.0, assuming a radius of 0.140 nm for hydrogen anion [1][2][3] and using the Shannon effective ionic radii [4]. In fact (inverse) perovskite structures have been reported for NaMgH 3 , KMgH 3 , RbCaH 3 , CsCaH 3 , SrLiH 3 , BaLiH 3 , CaCoH 3 and CaNiH 3 [1][2][3][5][6][7][8][9][10], as represented by the closed circles in the region indicated in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamical stability and electronic structure of a perovskite-type hydride, NaMgH3

Ikeda

Kato

Shinzato

et al. 2007

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Thermodynamical stability and electronic structure of a perovskite-type hydride, NaMgH3

Ikeda

Kato

Shinzato

et al. 2007

Journal of Alloys and Compounds

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“…As shown in reaction 3, NaAlH 4 + MgH 2 à NaMgH 3 + Al + 3/2H 2 (3) the reaction with NaAlH 4 proceeds with formation of a stable ternary hydride with 6 wt % H 2 [34][35][36][37]. During ball milling, only the reactant hydrides are observed; however, under the more energetic MSP conditions, NaMgH 3 is observed in nearly complete yield ( Figure 4).…”

Section: Resultsmentioning

confidence: 89%

Investigation of the thermodynamics governing metal hydride synthesis in the molten state process

Stowe

Berseth

Farrell

et al. 2008

Journal of Alloys and Compounds

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Complex metal hydrides have been synthesized for hydrogen storage through a new synthetic technique utilizing high hydrogen overpressure at elevated temperatures (molten state processing). This synthesis technique holds the potential of fusing different complex hydrides at elevated temperatures and pressures to form new species with enhanced hydrogen storage properties. Formation of these compounds is driven by thermodynamic and kinetic considerations. We report on investigations of the thermodynamics. Novel synthetic complexes were formed, structurally characterized, and their hydrogen desorption properties investigated. The effectiveness of the molten state process is compared with mechanicosynthetic ball milling.

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“…Perovskite structures have long been known for metal hydrides, e.g., CsCaH 3 and NaMgH 3 containing the anion H − [117][118][119][120][121]. However, only recently the first perovskite-type metal borohydride, KMn(BH 4 ) 3 , was reported, though followed up by extensive research reporting multiple new perovskite-type metal borohydrides containing the complex anion BH 4 − , see also [116,[122][123][124].…”

Section: Bimetallic Borohydridesmentioning

confidence: 99%

Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage

et al. 2017

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Hydrogen has a very diverse chemistry and reacts with most other elements to form compounds, which have fascinating structures, compositions and properties. Complex metal hydrides are a rapidly expanding class of materials, approaching multi-functionality, in particular within the energy storage field. This review illustrates that complex metal hydrides may store hydrogen in the solid state, act as novel battery materials, both as electrolytes and electrode materials, or store solar heat in a more efficient manner as compared to traditional heat storage materials. Furthermore, it is highlighted how complex metal hydrides may act in an integrated setup with a fuel cell. This review focuses on the unique properties of light element complex metal hydrides mainly based on boron, nitrogen and aluminum, e.g., metal borohydrides and metal alanates. Our hope is that this review can provide new inspiration to solve the great challenge of our time: efficient conversion and large-scale storage of renewable energy.

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Reversible hydriding and dehydriding reactions of perovskite-type hydride NaMgH3

Cited by 69 publications

References 18 publications

Thermodynamical stability and electronic structure of a perovskite-type hydride, NaMgH3

Thermodynamical stability and electronic structure of a perovskite-type hydride, NaMgH3

Investigation of the thermodynamics governing metal hydride synthesis in the molten state process

Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage

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