Microstructure and hydrogen storage kinetics of Mg<sub>89</sub>RE<sub>11</sub> (RE = Pr, Nd, Sm) binary alloys

Chen, Li; Hu, Changyi; Liu, Feng

doi:10.1039/c8ra08983c

Cited by 19 publications

(1 citation statement)

References 48 publications

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“…The majority of researchers are focused on the search for ways to solve the problem of improving the kinetics of magnesium hydrogenation and MgH2 dehydrogenation [14,[57][58][59][60][61][62][63][64]. Various methods are used to prevent the negative influence of the oxide/hydroxide surface layer on dissociative chemisorption processes and hydrogen recombination, and to reduce the diffusion paths in the solid matrix by minimizing the grain size.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ti additive and preparation procedure on the temperature and decomposition kinetics of the MgH2 phase in the synthesized mechanicals alloys

Ershova

Dobrovolsky

Solonin

2023

ISJEA

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The mechanical alloy Mg + 10 wt.% Ti and two mechanical alloys MgH2 + 10 wt.% Ti were synthesized by a reactive mechanical alloying (RMA) method, but in different ways. The influence of doping and the preparation procedure of mechanical alloys (MAs) on thehydrogen sorption properties, temperature and decomposition kinetics of their MgH2 phase was investigated by isobaric thermodesorption spectroscopy at a constant hydrogen pressure of 0.1 MPa. The desorption kinetics of the milled MgH2 + 10 wt.% Ti are faster than in the case of the ball milled Mg + 10 wt.% Ti. It was found that the manner of obtaining a mechanical alloys by reactive milling of MgH2 +10 wt. % Ti powder mixture rather than Mg +10 wt. % Ti powder mixture to improve the kinetic characteristics. The role of Ti as an alloying element in improving the hydrogen desorption kinetics of МAs obtained by various preparation procedures was studied. The stabilizing effect of Ti on the nanocrystalline structure and growth of the crystallites (grains) of the MgH2 phase during the cycling was also evaluated. It has been established the practical absence of the influence of Ti additive and the manner of obtaining MAs on the its thermodynamic stability.

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Section: Introductionmentioning

confidence: 99%

Effect of Ti additive and preparation procedure on the temperature and decomposition kinetics of the MgH2 phase in the synthesized mechanicals alloys

Ershova

Dobrovolsky

Solonin

2023

ISJEA

View full text Add to dashboard Cite

show abstract

The Magnetic Properties and Glass Formation Ability of the Fe80Si8B6Nb5Cu Amorphous-Nanocrystalline Alloys with Different Phosphorus Addition

Zhang¹,

Jiang²,

Meng³

et al. 2020

J Supercond Nov Magn

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Effect of Hydrogenation on the Glass Formation Ability and Magnetic Properties of the Fe79Si9B6Nb5Cu1 Amorphous Nanocrystalline Alloys

Zhang

Liu

Feng

et al. 2022

J Supercond Nov Magn

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Microstructure and hydrogen storage kinetics of Mg₈₉RE₁₁ (RE = Pr, Nd, Sm) binary alloys

Abstract: Improving hydrogen storage performance of Mg89RE11 alloys attributes to the RE hydride nanoparticles facilitate the hydriding and dehydriding reactions.

Cited by 19 publications

References 48 publications

Effect of Ti additive and preparation procedure on the temperature and decomposition kinetics of the MgH2 phase in the synthesized mechanicals alloys

Effect of Ti additive and preparation procedure on the temperature and decomposition kinetics of the MgH2 phase in the synthesized mechanicals alloys

The Magnetic Properties and Glass Formation Ability of the Fe80Si8B6Nb5Cu Amorphous-Nanocrystalline Alloys with Different Phosphorus Addition

Effect of Hydrogenation on the Glass Formation Ability and Magnetic Properties of the Fe79Si9B6Nb5Cu1 Amorphous Nanocrystalline Alloys

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Microstructure and hydrogen storage kinetics of Mg89RE11 (RE = Pr, Nd, Sm) binary alloys

Abstract: Improving hydrogen storage performance of Mg89RE11 alloys attributes to the RE hydride nanoparticles facilitate the hydriding and dehydriding reactions.

Cited by 19 publications

References 48 publications

Effect of Ti additive and preparation procedure on the temperature and decomposition kinetics of the MgH2 phase in the synthesized mechanicals alloys

Effect of Ti additive and preparation procedure on the temperature and decomposition kinetics of the MgH2 phase in the synthesized mechanicals alloys

The Magnetic Properties and Glass Formation Ability of the Fe80Si8B6Nb5Cu Amorphous-Nanocrystalline Alloys with Different Phosphorus Addition

Effect of Hydrogenation on the Glass Formation Ability and Magnetic Properties of the Fe79Si9B6Nb5Cu1 Amorphous Nanocrystalline Alloys

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Microstructure and hydrogen storage kinetics of Mg₈₉RE₁₁ (RE = Pr, Nd, Sm) binary alloys