Hydrogenation of nanocrystalline Zr–Fe–H powder

Roupcová, Pavla; Schneeweiss, O.; Zhu, Min

doi:10.1016/j.jallcom.2005.03.096

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…The decreased hydrogen storage capacity can directly reflect the extent of the disproportionation reaction. Roupcová et al [13] also found that the zirconium-rich phase Zr 2 Fe in the structure is more prone to disproportionation after hydrogen absorption. Temperature and pressure are the most commonly used system control parameters in applications, but are rarely reported in literature.…”

Section: Introductionmentioning

confidence: 99%

Activation and Disproportionation of Zr2Fe Alloy as Hydrogen Storage Material

Song

Wang

et al. 2019

Molecules

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As a hydrogen storage material, Zr2Fe alloy has many advantages such as fast hydrogen absorption speed, high tritium recovery efficiency, strong anti-pulverization ability, and difficulty self-igniting in air. Zr2Fe alloy has lower hydrogen absorption pressure at room temperature than LaNi5 alloy. Compared with the ZrVFe alloy, the hydrogen release temperature of Zr2Fe is lower so that the material can recover hydrogen isotopes at lower hydrogen concentration efficiently. Unfortunately, the main problem of Zr2Fe alloy in application is that a disproportionation reaction is easy to occur after hydrogen absorption at high temperature. At present, there is little research on the generation and influencing factors of a disproportionation reaction in Zr2Fe alloy. In this paper, the effects of temperature and hydrogen pressure on the disproportionation of Zr2Fe alloy were studied systematically. The specific activation conditions and experimental parameters for reducing alloy disproportionation are given, which provide a reference for the specific application of Zr2Fe alloy.

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Section: Introductionmentioning

confidence: 99%

Activation and Disproportionation of Zr2Fe Alloy as Hydrogen Storage Material

Song

Wang

et al. 2019

Molecules

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“…The powder composites based on iron or iron oxides in ZrO 2 matrix are investigated because of their catalytical activity, e.g., [1,2], hydrogen absorption [3,4,5] or magnetic properties [6,7]. The particles of pure Zr and its intermetallic phases can store hydrogen and serve as a getter protection for the iron particles against oxidation in the vacuum equipments.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of Fe and Fe3O4 nanoparticles in ZrO2 matrix

Roupcová

Schneeweiss

2006

Czech J Phys

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Iron and magnetite nanoparticles in zirconium oxide matrix have been prepared by a heat treatment of a mixture of nanocrystalline iron oxide and zirconium oxide or zirconium hydride powders. Changes in the phase composition of the as-mixed powders during annealing in vacuum or in hydrogen were monitored using thermomagnetic curves. Structure and phase composition of the final products were characterized by X-ray powder diffraction and 57 Fe Mössbauer spectroscopy. Influence of the composition of the original mixture and quality of the annealing atmosphere on the final properties of the composites are discussed.PACS : 73.61 At; 76.80.+y; 61.82 Bg

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Approach and algorithm for generating appropriate doped structures for high-throughput materials screening

Zhang

Yang

2018

Computational Materials Science

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Hydrogenation of nanocrystalline Zr–Fe–H powder

Cited by 4 publications

References 11 publications

Activation and Disproportionation of Zr2Fe Alloy as Hydrogen Storage Material

Activation and Disproportionation of Zr2Fe Alloy as Hydrogen Storage Material

Preparation and properties of Fe and Fe3O4 nanoparticles in ZrO2 matrix

Approach and algorithm for generating appropriate doped structures for high-throughput materials screening

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